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Direktori : /proc/thread-self/root/var/softaculous/sitepad/editor/site-inc/ |
Current File : //proc/thread-self/root/var/softaculous/sitepad/editor/site-inc/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 ); } }