Gecko [ nrupathungauniversityblr.ac.in ]

Name	Size	Permission
ID3	[ DIR ]	drwxrwxrwx
IXR	[ DIR ]	drwxrwxrwx
PHPMailer	[ DIR ]	drwxrwxrwx
Requests	[ DIR ]	drwxrwxrwx
SimplePie	[ DIR ]	drwxrwxrwx
Text	[ DIR ]	drwxrwxrwx
assets	[ DIR ]	drwxrwxrwx
block-patterns	[ DIR ]	drwxrwxrwx
block-supports	[ DIR ]	drwxrwxrwx
blocks	[ DIR ]	drwxrwxrwx
certificates	[ DIR ]	drwxrwxrwx
css	[ DIR ]	drwxrwxrwx
customize	[ DIR ]	drwxrwxrwx
fonts	[ DIR ]	drwxrwxrwx
images	[ DIR ]	drwxrwxrwx
js	[ DIR ]	drwxrwxrwx
pomo	[ DIR ]	drwxrwxrwx
random_compat	[ DIR ]	drwxrwxrwx
rest-api	[ DIR ]	drwxrwxrwx
sitemaps	[ DIR ]	drwxrwxrwx
sodium_compat	[ DIR ]	drwxrwxrwx
theme-compat	[ DIR ]	drwxrwxrwx
widgets	[ DIR ]	drwxrwxrwx
.DS_Store	10 KB	-rwxrwxrwx
.wp-includes.php	3.61 KB	-rw-r--r--
admin-bar.php	31.6 KB	-rwxrwxrwx
atomlib.php	11.67 KB	-rwxrwxrwx
author-template.php	16.63 KB	-rwxrwxrwx
block-editor.php	16.6 KB	-rwxrwxrwx
block-patterns.php	2.6 KB	-rwxrwxrwx
block-template-utils.php	3.67 KB	-rwxrwxrwx
block-template.php	6.89 KB	-rwxrwxrwx
blocks.php	35.68 KB	-rwxrwxrwx
bookmark-template.php	12.42 KB	-rwxrwxrwx
bookmark.php	14.97 KB	-rwxrwxrwx
cache-compat.php	1.02 KB	-rwxrwxrwx
cache.php	9.29 KB	-rwxrwxrwx
canonical.php	32.31 KB	-rwxrwxrwx
capabilities.php	34.92 KB	-rwxrwxrwx
category-template.php	54.26 KB	-rwxrwxrwx
category.php	12.41 KB	-rwxrwxrwx
class-IXR.php	2.48 KB	-rwxrwxrwx
class-feed.php	529 B	-rwxrwxrwx
class-http.php	38.78 KB	-rwxrwxrwx
class-json.php	42.42 KB	-rwxrwxrwx
class-oembed.php	407 B	-rwxrwxrwx
class-phpass.php	6.54 KB	-rwxrwxrwx
class-phpmailer.php	664 B	-rwxrwxrwx
class-pop3.php	20.35 KB	-rwxrwxrwx
class-requests.php	29.72 KB	-rwxrwxrwx
class-simplepie.php	94.01 KB	-rwxrwxrwx
class-smtp.php	457 B	-rwxrwxrwx
class-snoopy.php	36.83 KB	-rwxrwxrwx
class-walker-category-dropdown...	2.08 KB	-rwxrwxrwx
class-walker-category.php	7.71 KB	-rwxrwxrwx
class-walker-comment.php	13.41 KB	-rwxrwxrwx
class-walker-nav-menu.php	8.44 KB	-rwxrwxrwx
class-walker-page-dropdown.php	2.25 KB	-rwxrwxrwx
class-walker-page.php	6.88 KB	-rwxrwxrwx
class-wp-admin-bar.php	16.59 KB	-rwxrwxrwx
class-wp-ajax-response.php	5.12 KB	-rwxrwxrwx
class-wp-application-passwords...	10.38 KB	-rwxrwxrwx
class-wp-block-editor-context....	890 B	-rwxrwxrwx
class-wp-block-list.php	4.37 KB	-rwxrwxrwx
class-wp-block-parser.php	14.86 KB	-rwxrwxrwx
class-wp-block-pattern-categor...	4.19 KB	-rwxrwxrwx
class-wp-block-patterns-regist...	4.43 KB	-rwxrwxrwx
class-wp-block-styles-registry...	4.6 KB	-rwxrwxrwx
class-wp-block-supports.php	5.15 KB	-rwxrwxrwx
class-wp-block-template.php	1.18 KB	-rwxrwxrwx
class-wp-block-type-registry.p...	4.53 KB	-rwxrwxrwx
class-wp-block-type.php	8.95 KB	-rwxrwxrwx
class-wp-block.php	6.61 KB	-rwxrwxrwx
class-wp-comment-query.php	44.42 KB	-rwxrwxrwx
class-wp-comment.php	9.1 KB	-rwxrwxrwx
class-wp-customize-control.php	25.07 KB	-rwxrwxrwx
class-wp-customize-manager.php	196.48 KB	-rwxrwxrwx
class-wp-customize-nav-menus.p...	55.44 KB	-rwxrwxrwx
class-wp-customize-panel.php	10.16 KB	-rwxrwxrwx
class-wp-customize-section.php	10.72 KB	-rwxrwxrwx
class-wp-customize-setting.php	29.07 KB	-rwxrwxrwx
class-wp-customize-widgets.php	69.52 KB	-rwxrwxrwx
class-wp-date-query.php	34.02 KB	-rwxrwxrwx
class-wp-dependency.php	2.45 KB	-rwxrwxrwx
class-wp-editor.php	69.54 KB	-rwxrwxrwx
class-wp-embed.php	15.58 KB	-rwxrwxrwx
class-wp-error.php	7.13 KB	-rwxrwxrwx
class-wp-fatal-error-handler.p...	7.4 KB	-rwxrwxrwx
class-wp-feed-cache-transient....	2.5 KB	-rwxrwxrwx
class-wp-feed-cache.php	970 B	-rwxrwxrwx
class-wp-hook.php	14.65 KB	-rwxrwxrwx
class-wp-http-cookie.php	7.02 KB	-rwxrwxrwx
class-wp-http-curl.php	12.06 KB	-rwxrwxrwx
class-wp-http-encoding.php	6.5 KB	-rwxrwxrwx
class-wp-http-ixr-client.php	3.39 KB	-rwxrwxrwx
class-wp-http-proxy.php	5.73 KB	-rwxrwxrwx
class-wp-http-requests-hooks.p...	1.93 KB	-rwxrwxrwx
class-wp-http-requests-respons...	4.24 KB	-rwxrwxrwx
class-wp-http-response.php	2.88 KB	-rwxrwxrwx
class-wp-http-streams.php	15.74 KB	-rwxrwxrwx
class-wp-image-editor-gd.php	15.15 KB	-rwxrwxrwx
class-wp-image-editor-imagick....	26.24 KB	-rwxrwxrwx
class-wp-image-editor.php	16.2 KB	-rwxrwxrwx
class-wp-list-util.php	6.79 KB	-rwxrwxrwx
class-wp-locale-switcher.php	4.9 KB	-rwxrwxrwx
class-wp-locale.php	13.65 KB	-rwxrwxrwx
class-wp-matchesmapregex.php	1.76 KB	-rwxrwxrwx
class-wp-meta-query.php	27.19 KB	-rwxrwxrwx
class-wp-metadata-lazyloader.p...	5.23 KB	-rwxrwxrwx
class-wp-network-query.php	18.72 KB	-rwxrwxrwx
class-wp-network.php	12.09 KB	-rwxrwxrwx
class-wp-object-cache.php	13.23 KB	-rwxrwxrwx
class-wp-oembed-controller.php	6.67 KB	-rwxrwxrwx
class-wp-oembed.php	29.61 KB	-rwxrwxrwx
class-wp-paused-extensions-sto...	4.81 KB	-rwxrwxrwx
class-wp-post-type.php	20.33 KB	-rwxrwxrwx
class-wp-post.php	6.27 KB	-rwxrwxrwx
class-wp-query.php	131.63 KB	-rwxrwxrwx
class-wp-recovery-mode-cookie-...	6.31 KB	-rwxrwxrwx
class-wp-recovery-mode-email-s...	10.41 KB	-rwxrwxrwx
class-wp-recovery-mode-key-ser...	4.17 KB	-rwxrwxrwx
class-wp-recovery-mode-link-se...	3.32 KB	-rwxrwxrwx
class-wp-recovery-mode.php	11.11 KB	-rwxrwxrwx
class-wp-rewrite.php	61.37 KB	-rwxrwxrwx
class-wp-role.php	2.44 KB	-rwxrwxrwx
class-wp-roles.php	8.23 KB	-rwxrwxrwx
class-wp-session-tokens.php	7.25 KB	-rwxrwxrwx
class-wp-simplepie-file.php	3.18 KB	-rwxrwxrwx
class-wp-simplepie-sanitize-ks...	1.73 KB	-rwxrwxrwx
class-wp-site-query.php	28.62 KB	-rwxrwxrwx
class-wp-site.php	7.25 KB	-rwxrwxrwx
class-wp-tax-query.php	18.81 KB	-rwxrwxrwx
class-wp-taxonomy.php	13.03 KB	-rwxrwxrwx
class-wp-term-query.php	36.39 KB	-rwxrwxrwx
class-wp-term.php	5.15 KB	-rwxrwxrwx
class-wp-text-diff-renderer-in...	716 B	-rwxrwxrwx
class-wp-text-diff-renderer-ta...	16.4 KB	-rwxrwxrwx
class-wp-theme-json-resolver.p...	11.2 KB	-rwxrwxrwx
class-wp-theme-json.php	32.95 KB	-rwxrwxrwx
class-wp-theme.php	50.11 KB	-rwxrwxrwx
class-wp-user-meta-session-tok...	2.92 KB	-rwxrwxrwx
class-wp-user-query.php	30.6 KB	-rwxrwxrwx
class-wp-user-request.php	2.14 KB	-rwxrwxrwx
class-wp-user.php	21.67 KB	-rwxrwxrwx
class-wp-walker.php	12.43 KB	-rwxrwxrwx
class-wp-widget-factory.php	3.24 KB	-rwxrwxrwx
class-wp-widget.php	17.73 KB	-rwxrwxrwx
class-wp-xmlrpc-server.php	207.93 KB	-rwxrwxrwx
class-wp.php	24.5 KB	-rwxrwxrwx
class.wp-dependencies.php	12.57 KB	-rwxrwxrwx
class.wp-scripts.php	18.49 KB	-rwxrwxrwx
class.wp-styles.php	10.62 KB	-rwxrwxrwx
comment-template.php	92.73 KB	-rwxrwxrwx
comment.php	122.81 KB	-rwxrwxrwx
compat.php	11.8 KB	-rwxrwxrwx
cron.php	39.69 KB	-rwxrwxrwx
date.php	406 B	-rwxrwxrwx
default-constants.php	10.02 KB	-rwxrwxrwx
default-filters.php	29.29 KB	-rwxrwxrwx
default-widgets.php	2.17 KB	-rwxrwxrwx
deprecated.php	121.9 KB	-rwxrwxrwx
embed-template.php	341 B	-rwxrwxrwx
embed.php	46.96 KB	-rwxrwxrwx
error-protection.php	4.02 KB	-rwxrwxrwx
feed-atom-comments.php	5.32 KB	-rwxrwxrwx
feed-atom.php	3.03 KB	-rwxrwxrwx
feed-rdf.php	2.61 KB	-rwxrwxrwx
feed-rss.php	1.16 KB	-rwxrwxrwx
feed-rss2-comments.php	3.97 KB	-rwxrwxrwx
feed-rss2.php	3.71 KB	-rwxrwxrwx
feed.php	22.43 KB	-rwxrwxrwx
formatting.php	318.97 KB	-rwxrwxrwx
functions.php	247.19 KB	-rwxrwxrwx
functions.wp-scripts.php	13.11 KB	-rwxrwxrwx
functions.wp-styles.php	8.11 KB	-rwxrwxrwx
general-template.php	154.5 KB	-rwxrwxrwx
http.php	21.86 KB	-rwxrwxrwx
https-detection.php	6.71 KB	-rwxrwxrwx
https-migration.php	4.62 KB	-rwxrwxrwx
kses.php	62.39 KB	-rwxrwxrwx
l10n.php	55.41 KB	-rwxrwxrwx
link-template.php	145.19 KB	-rwxrwxrwx
load.php	48.87 KB	-rwxrwxrwx
locale.php	162 B	-rwxrwxrwx
media-template.php	58.99 KB	-rwxrwxrwx
media.php	173.93 KB	-rwxrwxrwx
meta.php	58.72 KB	-rwxrwxrwx
ms-blogs.php	24.58 KB	-rwxrwxrwx
ms-default-constants.php	4.6 KB	-rwxrwxrwx
ms-default-filters.php	6.34 KB	-rwxrwxrwx
ms-deprecated.php	20.63 KB	-rwxrwxrwx
ms-files.php	2.58 KB	-rwxrwxrwx
ms-functions.php	91.7 KB	-rwxrwxrwx
ms-load.php	19.32 KB	-rwxrwxrwx
ms-network.php	3.58 KB	-rwxrwxrwx
ms-settings.php	4.03 KB	-rwxrwxrwx
ms-site.php	38.66 KB	-rwxrwxrwx
nav-menu-template.php	22.75 KB	-rwxrwxrwx
nav-menu.php	41.19 KB	-rwxrwxrwx
option.php	74.77 KB	-rwxrwxrwx
pluggable-deprecated.php	6.12 KB	-rwxrwxrwx
pluggable.php	101.48 KB	-rwxrwxrwx
plugin.php	32.34 KB	-rwxrwxrwx
post-formats.php	6.91 KB	-rwxrwxrwx
post-template.php	63.25 KB	-rwxrwxrwx
post-thumbnail-template.php	9.13 KB	-rwxrwxrwx
post.php	258.3 KB	-rwxrwxrwx
query.php	34.94 KB	-rwxrwxrwx
registration-functions.php	200 B	-rwxrwxrwx
registration.php	200 B	-rwxrwxrwx
rest-api.php	91.19 KB	-rwxrwxrwx
revision.php	22.01 KB	-rwxrwxrwx
rewrite.php	18.76 KB	-rwxrwxrwx
robots-template.php	5.05 KB	-rwxrwxrwx
rss-functions.php	255 B	-rwxrwxrwx
rss.php	22.44 KB	-rwxrwxrwx
script-loader.php	105.92 KB	-rwxrwxrwx
session.php	258 B	-rwxrwxrwx
shortcodes.php	20.93 KB	-rwxrwxrwx
sitemaps.php	3.16 KB	-rwxrwxrwx
spl-autoload-compat.php	441 B	-rwxrwxrwx
taxonomy.php	164.21 KB	-rwxrwxrwx
template-canvas.php	594 B	-rwxrwxrwx
template-loader.php	2.94 KB	-rwxrwxrwx
template.php	21.96 KB	-rwxrwxrwx
theme-i18n.json	634 B	-rwxrwxrwx
theme-templates.php	4.61 KB	-rwxrwxrwx
theme.json	5.2 KB	-rwxrwxrwx
theme.php	122.45 KB	-rwxrwxrwx
update.php	29.33 KB	-rwxrwxrwx
user.php	151.56 KB	-rwxrwxrwx
vars.php	5.68 KB	-rwxrwxrwx
version.php	766 B	-rwxrwxrwx
widgets.php	65.7 KB	-rwxrwxrwx
wlwmanifest.xml	1.02 KB	-rwxrwxrwx
wp-db.php	103.61 KB	-rwxrwxrwx
wp-diff.php	647 B	-rwxrwxrwx

Code Editor : compat.php

<?php
/**
 * WordPress implementation for PHP functions either missing from older PHP versions or not included by default.
 *
 * @package PHP
 * @access private
 */

// If gettext isn't available.
if ( ! function_exists( '_' ) ) {
	function _( $string ) {
		return $string;
	}
}

/**
 * Returns whether PCRE/u (PCRE_UTF8 modifier) is available for use.
 *
 * @ignore
 * @since 4.2.2
 * @access private
 *
 * @param bool $set - Used for testing only
 *             null   : default - get PCRE/u capability
 *             false  : Used for testing - return false for future calls to this function
 *             'reset': Used for testing - restore default behavior of this function
 */
function _wp_can_use_pcre_u( $set = null ) {
	static $utf8_pcre = 'reset';

if ( null !== $set ) {
		$utf8_pcre = $set;
	}

if ( 'reset' === $utf8_pcre ) {
		// phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged -- intentional error generated to detect PCRE/u support.
		$utf8_pcre = @preg_match( '/^./u', 'a' );
	}

return $utf8_pcre;
}

if ( ! function_exists( 'mb_substr' ) ) :
	/**
	 * Compat function to mimic mb_substr().
	 *
	 * @ignore
	 * @since 3.2.0
	 *
	 * @see _mb_substr()
	 *
	 * @param string      $str      The string to extract the substring from.
	 * @param int         $start    Position to being extraction from in `$str`.
	 * @param int|null    $length   Optional. Maximum number of characters to extract from `$str`.
	 *                              Default null.
	 * @param string|null $encoding Optional. Character encoding to use. Default null.
	 * @return string Extracted substring.
	 */
	function mb_substr( $str, $start, $length = null, $encoding = null ) {
		return _mb_substr( $str, $start, $length, $encoding );
	}
endif;

/**
 * Internal compat function to mimic mb_substr().
 *
 * Only understands UTF-8 and 8bit.  All other character sets will be treated as 8bit.
 * For $encoding === UTF-8, the $str input is expected to be a valid UTF-8 byte sequence.
 * The behavior of this function for invalid inputs is undefined.
 *
 * @ignore
 * @since 3.2.0
 *
 * @param string      $str      The string to extract the substring from.
 * @param int         $start    Position to being extraction from in `$str`.
 * @param int|null    $length   Optional. Maximum number of characters to extract from `$str`.
 *                              Default null.
 * @param string|null $encoding Optional. Character encoding to use. Default null.
 * @return string Extracted substring.
 */
function _mb_substr( $str, $start, $length = null, $encoding = null ) {
	if ( null === $encoding ) {
		$encoding = get_option( 'blog_charset' );
	}

/*
	 * The solution below works only for UTF-8, so in case of a different
	 * charset just use built-in substr().
	 */
	if ( ! in_array( $encoding, array( 'utf8', 'utf-8', 'UTF8', 'UTF-8' ), true ) ) {
		return is_null( $length ) ? substr( $str, $start ) : substr( $str, $start, $length );
	}

if ( _wp_can_use_pcre_u() ) {
		// Use the regex unicode support to separate the UTF-8 characters into an array.
		preg_match_all( '/./us', $str, $match );
		$chars = is_null( $length ) ? array_slice( $match[0], $start ) : array_slice( $match[0], $start, $length );
		return implode( '', $chars );
	}

$regex = '/(
		[\x00-\x7F]                  # single-byte sequences   0xxxxxxx
		| [\xC2-\xDF][\x80-\xBF]       # double-byte sequences   110xxxxx 10xxxxxx
		| \xE0[\xA0-\xBF][\x80-\xBF]   # triple-byte sequences   1110xxxx 10xxxxxx * 2
		| [\xE1-\xEC][\x80-\xBF]{2}
		| \xED[\x80-\x9F][\x80-\xBF]
		| [\xEE-\xEF][\x80-\xBF]{2}
		| \xF0[\x90-\xBF][\x80-\xBF]{2} # four-byte sequences   11110xxx 10xxxxxx * 3
		| [\xF1-\xF3][\x80-\xBF]{3}
		| \xF4[\x80-\x8F][\x80-\xBF]{2}
	)/x';

// Start with 1 element instead of 0 since the first thing we do is pop.
	$chars = array( '' );
	do {
		// We had some string left over from the last round, but we counted it in that last round.
		array_pop( $chars );

/*
		 * Split by UTF-8 character, limit to 1000 characters (last array element will contain
		 * the rest of the string).
		 */
		$pieces = preg_split( $regex, $str, 1000, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY );

$chars = array_merge( $chars, $pieces );

// If there's anything left over, repeat the loop.
	} while ( count( $pieces ) > 1 && $str = array_pop( $pieces ) );

return implode( '', array_slice( $chars, $start, $length ) );
}

if ( ! function_exists( 'mb_strlen' ) ) :
	/**
	 * Compat function to mimic mb_strlen().
	 *
	 * @ignore
	 * @since 4.2.0
	 *
	 * @see _mb_strlen()
	 *
	 * @param string      $str      The string to retrieve the character length from.
	 * @param string|null $encoding Optional. Character encoding to use. Default null.
	 * @return int String length of `$str`.
	 */
	function mb_strlen( $str, $encoding = null ) {
		return _mb_strlen( $str, $encoding );
	}
endif;

/**
 * Internal compat function to mimic mb_strlen().
 *
 * Only understands UTF-8 and 8bit.  All other character sets will be treated as 8bit.
 * For $encoding === UTF-8, the `$str` input is expected to be a valid UTF-8 byte
 * sequence. The behavior of this function for invalid inputs is undefined.
 *
 * @ignore
 * @since 4.2.0
 *
 * @param string      $str      The string to retrieve the character length from.
 * @param string|null $encoding Optional. Character encoding to use. Default null.
 * @return int String length of `$str`.
 */
function _mb_strlen( $str, $encoding = null ) {
	if ( null === $encoding ) {
		$encoding = get_option( 'blog_charset' );
	}

/*
	 * The solution below works only for UTF-8, so in case of a different charset
	 * just use built-in strlen().
	 */
	if ( ! in_array( $encoding, array( 'utf8', 'utf-8', 'UTF8', 'UTF-8' ), true ) ) {
		return strlen( $str );
	}

if ( _wp_can_use_pcre_u() ) {
		// Use the regex unicode support to separate the UTF-8 characters into an array.
		preg_match_all( '/./us', $str, $match );
		return count( $match[0] );
	}

$regex = '/(?:
		[\x00-\x7F]                  # single-byte sequences   0xxxxxxx
		| [\xC2-\xDF][\x80-\xBF]       # double-byte sequences   110xxxxx 10xxxxxx
		| \xE0[\xA0-\xBF][\x80-\xBF]   # triple-byte sequences   1110xxxx 10xxxxxx * 2
		| [\xE1-\xEC][\x80-\xBF]{2}
		| \xED[\x80-\x9F][\x80-\xBF]
		| [\xEE-\xEF][\x80-\xBF]{2}
		| \xF0[\x90-\xBF][\x80-\xBF]{2} # four-byte sequences   11110xxx 10xxxxxx * 3
		| [\xF1-\xF3][\x80-\xBF]{3}
		| \xF4[\x80-\x8F][\x80-\xBF]{2}
	)/x';

// Start at 1 instead of 0 since the first thing we do is decrement.
	$count = 1;
	do {
		// We had some string left over from the last round, but we counted it in that last round.
		$count--;

/*
		 * Split by UTF-8 character, limit to 1000 characters (last array element will contain
		 * the rest of the string).
		 */
		$pieces = preg_split( $regex, $str, 1000 );

// Increment.
		$count += count( $pieces );

// If there's anything left over, repeat the loop.
	} while ( $str = array_pop( $pieces ) );

// Fencepost: preg_split() always returns one extra item in the array.
	return --$count;
}

if ( ! function_exists( 'hash_hmac' ) ) :
	/**
	 * Compat function to mimic hash_hmac().
	 *
	 * The Hash extension is bundled with PHP by default since PHP 5.1.2.
	 * However, the extension may be explicitly disabled on select servers.
	 * As of PHP 7.4.0, the Hash extension is a core PHP extension and can no
	 * longer be disabled.
	 * I.e. when PHP 7.4.0 becomes the minimum requirement, this polyfill
	 * and the associated `_hash_hmac()` function can be safely removed.
	 *
	 * @ignore
	 * @since 3.2.0
	 *
	 * @see _hash_hmac()
	 *
	 * @param string $algo       Hash algorithm. Accepts 'md5' or 'sha1'.
	 * @param string $data       Data to be hashed.
	 * @param string $key        Secret key to use for generating the hash.
	 * @param bool   $raw_output Optional. Whether to output raw binary data (true),
	 *                           or lowercase hexits (false). Default false.
	 * @return string|false The hash in output determined by `$raw_output`. False if `$algo`
	 *                      is unknown or invalid.
	 */
	function hash_hmac( $algo, $data, $key, $raw_output = false ) {
		return _hash_hmac( $algo, $data, $key, $raw_output );
	}
endif;

/**
 * Internal compat function to mimic hash_hmac().
 *
 * @ignore
 * @since 3.2.0
 *
 * @param string $algo       Hash algorithm. Accepts 'md5' or 'sha1'.
 * @param string $data       Data to be hashed.
 * @param string $key        Secret key to use for generating the hash.
 * @param bool   $raw_output Optional. Whether to output raw binary data (true),
 *                           or lowercase hexits (false). Default false.
 * @return string|false The hash in output determined by `$raw_output`. False if `$algo`
 *                      is unknown or invalid.
 */
function _hash_hmac( $algo, $data, $key, $raw_output = false ) {
	$packs = array(
		'md5'  => 'H32',
		'sha1' => 'H40',
	);

if ( ! isset( $packs[ $algo ] ) ) {
		return false;
	}

$pack = $packs[ $algo ];

if ( strlen( $key ) > 64 ) {
		$key = pack( $pack, $algo( $key ) );
	}

$key = str_pad( $key, 64, chr( 0 ) );

$ipad = ( substr( $key, 0, 64 ) ^ str_repeat( chr( 0x36 ), 64 ) );
	$opad = ( substr( $key, 0, 64 ) ^ str_repeat( chr( 0x5C ), 64 ) );

$hmac = $algo( $opad . pack( $pack, $algo( $ipad . $data ) ) );

if ( $raw_output ) {
		return pack( $pack, $hmac );
	}
	return $hmac;
}

if ( ! function_exists( 'hash_equals' ) ) :
	/**
	 * Timing attack safe string comparison
	 *
	 * Compares two strings using the same time whether they're equal or not.
	 *
	 * Note: It can leak the length of a string when arguments of differing length are supplied.
	 *
	 * This function was added in PHP 5.6.
	 * However, the Hash extension may be explicitly disabled on select servers.
	 * As of PHP 7.4.0, the Hash extension is a core PHP extension and can no
	 * longer be disabled.
	 * I.e. when PHP 7.4.0 becomes the minimum requirement, this polyfill
	 * can be safely removed.
	 *
	 * @since 3.9.2
	 *
	 * @param string $a Expected string.
	 * @param string $b Actual, user supplied, string.
	 * @return bool Whether strings are equal.
	 */
	function hash_equals( $a, $b ) {
		$a_length = strlen( $a );
		if ( strlen( $b ) !== $a_length ) {
			return false;
		}
		$result = 0;

// Do not attempt to "optimize" this.
		for ( $i = 0; $i < $a_length; $i++ ) {
			$result |= ord( $a[ $i ] ) ^ ord( $b[ $i ] );
		}

return 0 === $result;
	}
endif;

// random_int() was introduced in PHP 7.0.
if ( ! function_exists( 'random_int' ) ) {
	require ABSPATH . WPINC . '/random_compat/random.php';
}
// sodium_crypto_box() was introduced in PHP 7.2.
if ( ! function_exists( 'sodium_crypto_box' ) ) {
	require ABSPATH . WPINC . '/sodium_compat/autoload.php';
}

if ( ! function_exists( 'is_countable' ) ) {
	/**
	 * Polyfill for is_countable() function added in PHP 7.3.
	 *
	 * Verify that the content of a variable is an array or an object
	 * implementing the Countable interface.
	 *
	 * @since 4.9.6
	 *
	 * @param mixed $var The value to check.
	 * @return bool True if `$var` is countable, false otherwise.
	 */
	function is_countable( $var ) {
		return ( is_array( $var )
			|| $var instanceof Countable
			|| $var instanceof SimpleXMLElement
			|| $var instanceof ResourceBundle
		);
	}
}

if ( ! function_exists( 'is_iterable' ) ) {
	/**
	 * Polyfill for is_iterable() function added in PHP 7.1.
	 *
	 * Verify that the content of a variable is an array or an object
	 * implementing the Traversable interface.
	 *
	 * @since 4.9.6
	 *
	 * @param mixed $var The value to check.
	 * @return bool True if `$var` is iterable, false otherwise.
	 */
	function is_iterable( $var ) {
		return ( is_array( $var ) || $var instanceof Traversable );
	}
}

// IMAGETYPE_WEBP constant is only defined in PHP 7.1 or later.
if ( ! defined( 'IMAGETYPE_WEBP' ) ) {
	define( 'IMAGETYPE_WEBP', 18 );
}

// IMG_WEBP constant is only defined in PHP 7.0.10 or later.
if ( ! defined( 'IMG_WEBP' ) ) {
	define( 'IMG_WEBP', IMAGETYPE_WEBP ); // phpcs:ignore PHPCompatibility.Constants.NewConstants.imagetype_webpFound
}

${this.title}

Code Editor : compat.php