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ðŸ“ ..
ðŸ“ ID3
ðŸ“ IXR
ðŸ“ PHPMailer
ðŸ“ Requests
ðŸ“ SimplePie
ðŸ“ Text
ðŸ“„ admin-bar.php(29.03 KB)
ðŸ“„ atomlib.php(11.56 KB)
ðŸ“„ author-template.php(16.22 KB)
ðŸ“„ blocks.php(12.43 KB)
ðŸ“„ bookmark-template.php(11.64 KB)
ðŸ“„ bookmark.php(13.55 KB)
ðŸ“„ bootstrap.php(4.11 KB)
ðŸ“„ cache.php(21.35 KB)
ðŸ“„ canonical.php(27.83 KB)
ðŸ“„ capabilities.php(28.84 KB)
ðŸ“„ category-template.php(50.8 KB)
ðŸ“„ category.php(12.41 KB)
ðŸ“ certificates
ðŸ“„ class-IXR.php(2.51 KB)
ðŸ“„ class-feed.php(523 B)
ðŸ“„ class-http.php(36.22 KB)
ðŸ“„ class-json.php(39.53 KB)
ðŸ“„ class-oembed.php(30.73 KB)
ðŸ“„ class-phpass.php(7.15 KB)
ðŸ“„ class-phpmailer.php(668 B)
ðŸ“„ class-pop3.php(20.43 KB)
ðŸ“„ class-requests.php(29.09 KB)
ðŸ“„ class-simplepie.php(87.17 KB)
ðŸ“„ class-smtp.php(461 B)
ðŸ“„ class-walker-category-dropdown.php(2.07 KB)
ðŸ“„ class-walker-category.php(6.62 KB)
ðŸ“„ class-walker-comment.php(13.33 KB)
ðŸ“„ class-walker-nav-menu.php(8.38 KB)
ðŸ“„ class-walker-page-dropdown.php(2.24 KB)
ðŸ“„ class-walker-page.php(6.78 KB)
ðŸ“„ class-wp-admin-bar.php(16.08 KB)
ðŸ“„ class-wp-ajax-response.php(5.01 KB)
ðŸ“„ class-wp-block-parser.php(14.86 KB)
ðŸ“„ class-wp-block-type-registry.php(4.63 KB)
ðŸ“„ class-wp-block-type.php(4.7 KB)
ðŸ“„ class-wp-comment-query.php(42.21 KB)
ðŸ“„ class-wp-comment.php(8.75 KB)
ðŸ“„ class-wp-customize-control.php(24.49 KB)
ðŸ“„ class-wp-customize-manager.php(195.47 KB)
ðŸ“„ class-wp-customize-nav-menus.php(53.08 KB)
ðŸ“„ class-wp-customize-panel.php(9.42 KB)
ðŸ“„ class-wp-customize-section.php(9.99 KB)
ðŸ“„ class-wp-customize-setting.php(27.59 KB)
ðŸ“„ class-wp-dependency.php(2.28 KB)
ðŸ“„ class-wp-editor.php(66.27 KB)
ðŸ“„ class-wp-embed.php(14.38 KB)
ðŸ“„ class-wp-error.php(4.81 KB)
ðŸ“„ class-wp-feed-cache-transient.php(2.5 KB)
ðŸ“„ class-wp-feed-cache.php(749 B)
ðŸ“„ class-wp-hook.php(13.77 KB)
ðŸ“„ class-wp-http-cookie.php(6.44 KB)
ðŸ“„ class-wp-http-curl.php(11.64 KB)
ðŸ“„ class-wp-http-encoding.php(6.35 KB)
ðŸ“„ class-wp-http-ixr-client.php(3.25 KB)
ðŸ“„ class-wp-http-proxy.php(5.92 KB)
ðŸ“„ class-wp-http-requests-hooks.php(1.83 KB)
ðŸ“„ class-wp-http-requests-response.php(4.19 KB)
ðŸ“„ class-wp-http-response.php(2.8 KB)
ðŸ“„ class-wp-http-streams.php(15.02 KB)
ðŸ“„ class-wp-image-editor-gd.php(13.18 KB)
ðŸ“„ class-wp-image-editor-imagick.php(21.27 KB)
ðŸ“„ class-wp-image-editor.php(11.49 KB)
ðŸ“„ class-wp-list-util.php(6.25 KB)
ðŸ“„ class-wp-locale-switcher.php(4.91 KB)
ðŸ“„ class-wp-locale.php(14.26 KB)
ðŸ“„ class-wp-matchesmapregex.php(1.76 KB)
ðŸ“„ class-wp-meta-query.php(22.86 KB)
ðŸ“„ class-wp-metadata-lazyloader.php(5.26 KB)
ðŸ“„ class-wp-network-query.php(16.79 KB)
ðŸ“„ class-wp-network.php(11.93 KB)
ðŸ“„ class-wp-oembed-controller.php(5.88 KB)
ðŸ“„ class-wp-post-type.php(17.81 KB)
ðŸ“„ class-wp-post.php(6.28 KB)
ðŸ“„ class-wp-query.php(127.67 KB)
ðŸ“„ class-wp-rewrite.php(58.42 KB)
ðŸ“„ class-wp-role.php(2.6 KB)
ðŸ“„ class-wp-roles.php(8.13 KB)
ðŸ“„ class-wp-session-tokens.php(7.25 KB)
ðŸ“„ class-wp-simplepie-file.php(2.27 KB)
ðŸ“„ class-wp-simplepie-sanitize-kses.php(1.73 KB)
ðŸ“„ class-wp-site-query.php(26.78 KB)
ðŸ“„ class-wp-site.php(7.13 KB)
ðŸ“„ class-wp-tax-query.php(18.81 KB)
ðŸ“„ class-wp-taxonomy.php(10.41 KB)
ðŸ“„ class-wp-term-query.php(33.84 KB)
ðŸ“„ class-wp-term.php(5.14 KB)
ðŸ“„ class-wp-text-diff-renderer-inline.php(716 B)
ðŸ“„ class-wp-text-diff-renderer-table.php(16.06 KB)
ðŸ“„ class-wp-theme.php(48.09 KB)
ðŸ“„ class-wp-user-meta-session-tokens.php(2.92 KB)
ðŸ“„ class-wp-user-query.php(30.49 KB)
ðŸ“„ class-wp-user.php(20.91 KB)
ðŸ“„ class-wp-walker.php(12.39 KB)
ðŸ“„ class-wp-widget-factory.php(3.69 KB)
ðŸ“„ class-wp-widget.php(17.41 KB)
ðŸ“„ class-wp-xmlrpc-server.php(202.08 KB)
ðŸ“„ class-wp.php(24.18 KB)
ðŸ“„ class.wp-dependencies.php(11.24 KB)
ðŸ“„ class.wp-scripts.php(16.79 KB)
ðŸ“„ class.wp-styles.php(9.61 KB)
ðŸ“„ comment-template.php(87.64 KB)
ðŸ“„ comment.php(111.72 KB)
ðŸ“„ compat.php(15.99 KB)
ðŸ“„ cron.php(30.82 KB)
ðŸ“ css
ðŸ“ customize
ðŸ“„ date.php(34.34 KB)
ðŸ“„ default-constants.php(9.61 KB)
ðŸ“„ default-filters.php(24.68 KB)
ðŸ“„ default-widgets.php(2.13 KB)
ðŸ“„ embed.php(44.04 KB)
ðŸ“„ feed-atom-comments.php(5.33 KB)
ðŸ“„ feed-atom.php(3.09 KB)
ðŸ“„ feed-rdf.php(2.67 KB)
ðŸ“„ feed-rss.php(1.25 KB)
ðŸ“„ feed-rss2-comments.php(4.09 KB)
ðŸ“„ feed-rss2.php(3.77 KB)
ðŸ“„ feed.php(19.29 KB)
ðŸ“ fonts
ðŸ“„ formatting.php(278.69 KB)
ðŸ“„ functions.php(207.2 KB)
ðŸ“„ functions.wp-scripts.php(12.53 KB)
ðŸ“„ functions.wp-styles.php(8.03 KB)
ðŸ“„ general-template.php(138.46 KB)
ðŸ“„ http.php(21.9 KB)
ðŸ“ images
ðŸ“ js
ðŸ“„ kses.php(55.74 KB)
ðŸ“„ l10n.php(50.58 KB)
ðŸ“„ link-template.php(135.4 KB)
ðŸ“„ load.php(36.4 KB)
ðŸ“„ media-template.php(46.33 KB)
ðŸ“„ media.php(141.33 KB)
ðŸ“„ meta.php(44.98 KB)
ðŸ“„ mime.php(39.54 KB)
ðŸ“„ nav-menu-template.php(21.2 KB)
ðŸ“„ nav-menu.php(39.57 KB)
ðŸ“„ open_basedir.php(21 B)
ðŸ“„ option.php(67.91 KB)
ðŸ“„ pluggable.php(97.52 KB)
ðŸ“„ plugin.php(31.37 KB)
ðŸ“ pomo
ðŸ“„ post-formats.php(6.86 KB)
ðŸ“„ post-template.php(60.07 KB)
ðŸ“„ post-thumbnail-template.php(8.75 KB)
ðŸ“„ post.php(227.37 KB)
ðŸ“„ query.php(31.24 KB)
ðŸ“ random_compat
ðŸ“ rest-api
ðŸ“„ rest-api.php(40.67 KB)
ðŸ“„ revision.php(21.08 KB)
ðŸ“„ rewrite.php(17.27 KB)
ðŸ“„ rss.php(22.66 KB)
ðŸ“„ script-loader.php(98.75 KB)
ðŸ“„ shortcodes.php(20.25 KB)
ðŸ“„ sitepad_functions.php(19.26 KB)
ðŸ“„ sitepad_functions2.php(21.99 KB)
ðŸ“„ spl-autoload-compat.php(2.51 KB)
ðŸ“„ taxonomy.php(152.95 KB)
ðŸ“„ template-loader.php(2.55 KB)
ðŸ“„ template.php(19.77 KB)
ðŸ“ theme-compat
ðŸ“„ theme.php(99.09 KB)
ðŸ“„ update.php(24.81 KB)
ðŸ“„ user.php(120.69 KB)
ðŸ“„ vars.php(5.59 KB)
ðŸ“„ version.php(2.03 KB)
ðŸ“ widgets
ðŸ“„ widgets.php(55.82 KB)
ðŸ“„ wlwmanifest.xml(1.03 KB)
ðŸ“„ wp-db.php(99.29 KB)
ðŸ“„ wp-diff.php(662 B)

Editing: 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
 *
 * @staticvar string $utf8_pcre
 *
 * @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 ) {
		$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' ) ) ) {
		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 join( '', 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' ) ) ) {
		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().
	 *
	 * @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( 'json_encode' ) ) {
	function json_encode( $string ) {
		global $wp_json;

if ( ! ( $wp_json instanceof Services_JSON ) ) {
			require_once( ABSPATH . WPINC . '/class-json.php' );
			$wp_json = new Services_JSON();
		}

return $wp_json->encodeUnsafe( $string );
	}
}

if ( ! function_exists( 'json_decode' ) ) {
	/**
	 * @global Services_JSON $wp_json
	 * @param string $string
	 * @param bool   $assoc_array
	 * @return object|array
	 */
	function json_decode( $string, $assoc_array = false ) {
		global $wp_json;

if ( ! ( $wp_json instanceof Services_JSON ) ) {
			require_once( ABSPATH . WPINC . '/class-json.php' );
			$wp_json = new Services_JSON();
		}

$res = $wp_json->decode( $string );
		if ( $assoc_array ) {
			$res = _json_decode_object_helper( $res );
		}
		return $res;
	}

/**
	 * @param object $data
	 * @return array
	 */
	function _json_decode_object_helper( $data ) {
		if ( is_object( $data ) ) {
			$data = get_object_vars( $data );
		}
		return is_array( $data ) ? array_map( __FUNCTION__, $data ) : $data;
	}
}

if ( ! function_exists( 'hash_equals' ) ) :
	/**
	 * Timing attack safe string comparison
	 *
	 * Compares two strings using the same time whether they're equal or not.
	 *
	 * This function was added in PHP 5.6.
	 *
	 * Note: It can leak the length of a string when arguments of differing length are supplied.
	 *
	 * @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 ( $a_length !== strlen( $b ) ) {
			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 $result === 0;
	}
endif;

// JSON_PRETTY_PRINT was introduced in PHP 5.4
// Defined here to prevent a notice when using it with wp_json_encode()
if ( ! defined( 'JSON_PRETTY_PRINT' ) ) {
	define( 'JSON_PRETTY_PRINT', 128 );
}

if ( ! function_exists( 'json_last_error_msg' ) ) :
	/**
	 * Retrieves the error string of the last json_encode() or json_decode() call.
	 *
	 * @since 4.4.0
	 *
	 * @internal This is a compatibility function for PHP <5.5
	 *
	 * @return bool|string Returns the error message on success, "No Error" if no error has occurred,
	 *                     or false on failure.
	 */
	function json_last_error_msg() {
		// See https://core.trac.wordpress.org/ticket/27799.
		if ( ! function_exists( 'json_last_error' ) ) {
			return false;
		}

$last_error_code = json_last_error();

// Just in case JSON_ERROR_NONE is not defined.
		$error_code_none = defined( 'JSON_ERROR_NONE' ) ? JSON_ERROR_NONE : 0;

switch ( true ) {
			case $last_error_code === $error_code_none:
				return 'No error';

case defined( 'JSON_ERROR_DEPTH' ) && JSON_ERROR_DEPTH === $last_error_code:
				return 'Maximum stack depth exceeded';

case defined( 'JSON_ERROR_STATE_MISMATCH' ) && JSON_ERROR_STATE_MISMATCH === $last_error_code:
				return 'State mismatch (invalid or malformed JSON)';

case defined( 'JSON_ERROR_CTRL_CHAR' ) && JSON_ERROR_CTRL_CHAR === $last_error_code:
				return 'Control character error, possibly incorrectly encoded';

case defined( 'JSON_ERROR_SYNTAX' ) && JSON_ERROR_SYNTAX === $last_error_code:
				return 'Syntax error';

case defined( 'JSON_ERROR_UTF8' ) && JSON_ERROR_UTF8 === $last_error_code:
				return 'Malformed UTF-8 characters, possibly incorrectly encoded';

case defined( 'JSON_ERROR_RECURSION' ) && JSON_ERROR_RECURSION === $last_error_code:
				return 'Recursion detected';

case defined( 'JSON_ERROR_INF_OR_NAN' ) && JSON_ERROR_INF_OR_NAN === $last_error_code:
				return 'Inf and NaN cannot be JSON encoded';

case defined( 'JSON_ERROR_UNSUPPORTED_TYPE' ) && JSON_ERROR_UNSUPPORTED_TYPE === $last_error_code:
				return 'Type is not supported';

default:
				return 'An unknown error occurred';
		}
	}
endif;

if ( ! interface_exists( 'JsonSerializable' ) ) {
	define( 'WP_JSON_SERIALIZE_COMPATIBLE', true );
	/**
	 * JsonSerializable interface.
	 *
	 * Compatibility shim for PHP <5.4
	 *
	 * @link https://secure.php.net/jsonserializable
	 *
	 * @since 4.4.0
	 */
	interface JsonSerializable {
		public function jsonSerialize();
	}
}

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

if ( ! function_exists( 'array_replace_recursive' ) ) :
	/**
	 * PHP-agnostic version of {@link array_replace_recursive()}.
	 *
	 * The array_replace_recursive() function is a PHP 5.3 function. WordPress
	 * currently supports down to PHP 5.2, so this method is a workaround
	 * for PHP 5.2.
	 *
	 * Note: array_replace_recursive() supports infinite arguments, but for our use-
	 * case, we only need to support two arguments.
	 *
	 * Subject to removal once WordPress makes PHP 5.3.0 the minimum requirement.
	 *
	 * @since 4.5.3
	 *
	 * @see https://secure.php.net/manual/en/function.array-replace-recursive.php#109390
	 *
	 * @param  array $base         Array with keys needing to be replaced.
	 * @param  array $replacements Array with the replaced keys.
	 *
	 * @return array
	 */
	function array_replace_recursive( $base = array(), $replacements = array() ) {
		foreach ( array_slice( func_get_args(), 1 ) as $replacements ) {
			$bref_stack = array( &$base );
			$head_stack = array( $replacements );

do {
				end( $bref_stack );

$bref = &$bref_stack[ key( $bref_stack ) ];
				$head = array_pop( $head_stack );

unset( $bref_stack[ key( $bref_stack ) ] );

foreach ( array_keys( $head ) as $key ) {
					if ( isset( $key, $bref ) &&
						isset( $bref[ $key ] ) && is_array( $bref[ $key ] ) &&
						isset( $head[ $key ] ) && is_array( $head[ $key ] ) ) {

$bref_stack[] = &$bref[ $key ];
						$head_stack[] = $head[ $key ];
					} else {
						$bref[ $key ] = $head[ $key ];
					}
				}
			} while ( count( $head_stack ) );
		}

return $base;
	}
endif;

/**
 * Polyfill for the SPL autoloader. In PHP 5.2 (but not 5.3 and later), SPL can
 * be disabled, and PHP 7.2 raises notices if the compiler finds an __autoload()
 * function declaration. Function availability is checked here, and the
 * autoloader is included only if necessary.
 */
if ( ! function_exists( 'spl_autoload_register' ) ) {
	require_once ABSPATH . WPINC . '/spl-autoload-compat.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 );
	}
}

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