155     public static function mb_decode_numericentity($s, $convmap, $encoding = null)  argument
167         if (null !== $encoding && !\is_scalar($encoding)) {
178         $encoding = self::getEncoding($encoding);
180         if ('UTF-8' === $encoding) {
181             $encoding = null;
186             $s = iconv($encoding, 'UTF-8//IGNORE', $s);
208         if (null === $encoding) {
212         return iconv('UTF-8', $encoding.'//IGNORE', $s);
215     public static function mb_encode_numericentity($s, $convmap, $encoding = null, $is_hex = false)  argument
227         if (null !== $encoding && !\is_scalar($encoding)) {
244         $encoding = self::getEncoding($encoding);
246         if ('UTF-8' === $encoding) {
247             $encoding = null;
252             $s = iconv($encoding, 'UTF-8//IGNORE', $s);
278         if (null === $encoding) {
282         return iconv('UTF-8', $encoding.'//IGNORE', $result);
285     public static function mb_convert_case($s, $mode, $encoding = null)  argument
292         $encoding = self::getEncoding($encoding);
294         if ('UTF-8' === $encoding) {
295             $encoding = null;
300             $s = iconv($encoding, 'UTF-8//IGNORE', $s);
360         if (null === $encoding) {
364         return iconv('UTF-8', $encoding.'//IGNORE', $s);
367     public static function mb_internal_encoding($encoding = null)  argument
369         if (null === $encoding) {
373         $normalizedEncoding = self::getEncoding($encoding);
385 …ew \ValueError(sprintf('Argument #1 ($encoding) must be a valid encoding, "%s" given', $encoding));
414     public static function mb_encoding_aliases($encoding)  argument
416         switch (strtoupper($encoding)) {
425     public static function mb_check_encoding($var = null, $encoding = null)  argument
427         if (null === $encoding) {
431             $encoding = self::$internalEncoding;
435 …return self::mb_detect_encoding($var, [$encoding]) || false !== @iconv($encoding, $encoding, $var);
439             if (!self::mb_check_encoding($key, $encoding)) {
442             if (!self::mb_check_encoding($value, $encoding)) {
515     public static function mb_strlen($s, $encoding = null)  argument
517         $encoding = self::getEncoding($encoding);
518         if ('CP850' === $encoding || 'ASCII' === $encoding) {
522         return @iconv_strlen($s, $encoding);
525     public static function mb_strpos($haystack, $needle, $offset = 0, $encoding = null)  argument
527         $encoding = self::getEncoding($encoding);
528         if ('CP850' === $encoding || 'ASCII' === $encoding) {
543         return iconv_strpos($haystack, $needle, $offset, $encoding);
546     public static function mb_strrpos($haystack, $needle, $offset = 0, $encoding = null)  argument
548         $encoding = self::getEncoding($encoding);
549         if ('CP850' === $encoding || 'ASCII' === $encoding) {
558                     $haystack = self::mb_substr($haystack, 0, $offset, $encoding);
562                 $haystack = self::mb_substr($haystack, $offset, 2147483647, $encoding);
567             ? iconv_strrpos($haystack, $needle, $encoding)
568             : self::mb_strlen($haystack, $encoding);
573     public static function mb_str_split($string, $split_length = 1, $encoding = null)  argument
591         if (null === $encoding) {
592             $encoding = mb_internal_encoding();
595         if ('UTF-8' === $encoding = self::getEncoding($encoding)) {
607         $length = mb_strlen($string, $encoding);
610             $result[] = mb_substr($string, $i, $split_length, $encoding);
616     public static function mb_strtolower($s, $encoding = null)  argument
618         return self::mb_convert_case($s, \MB_CASE_LOWER, $encoding);
621     public static function mb_strtoupper($s, $encoding = null)  argument
623         return self::mb_convert_case($s, \MB_CASE_UPPER, $encoding);
644     public static function mb_substr($s, $start, $length = null, $encoding = null)  argument
646         $encoding = self::getEncoding($encoding);
647         if ('CP850' === $encoding || 'ASCII' === $encoding) {
652             $start = iconv_strlen($s, $encoding) + $start;
661             $length = iconv_strlen($s, $encoding) + $length - $start;
667         return (string) iconv_substr($s, $start, $length, $encoding);
670     public static function mb_stripos($haystack, $needle, $offset = 0, $encoding = null)  argument
673             self::mb_convert_case($haystack, \MB_CASE_LOWER, $encoding),
674             self::mb_convert_case($needle, \MB_CASE_LOWER, $encoding),
677         return self::mb_strpos($haystack, $needle, $offset, $encoding);
680     public static function mb_stristr($haystack, $needle, $part = false, $encoding = null)  argument
682         $pos = self::mb_stripos($haystack, $needle, 0, $encoding);
684         return self::getSubpart($pos, $part, $haystack, $encoding);
687     public static function mb_strrchr($haystack, $needle, $part = false, $encoding = null)  argument
689         $encoding = self::getEncoding($encoding);
690         if ('CP850' === $encoding || 'ASCII' === $encoding) {
693             $needle = self::mb_substr($needle, 0, 1, $encoding);
694             $pos = iconv_strrpos($haystack, $needle, $encoding);
697         return self::getSubpart($pos, $part, $haystack, $encoding);
700     public static function mb_strrichr($haystack, $needle, $part = false, $encoding = null)  argument
702         $needle = self::mb_substr($needle, 0, 1, $encoding);
703         $pos = self::mb_strripos($haystack, $needle, $encoding);
705         return self::getSubpart($pos, $part, $haystack, $encoding);
708     public static function mb_strripos($haystack, $needle, $offset = 0, $encoding = null)  argument
710         $haystack = self::mb_convert_case($haystack, \MB_CASE_LOWER, $encoding);
711         $needle = self::mb_convert_case($needle, \MB_CASE_LOWER, $encoding);
716         return self::mb_strrpos($haystack, $needle, $offset, $encoding);
719     public static function mb_strstr($haystack, $needle, $part = false, $encoding = null)  argument
766     public static function mb_http_output($encoding = null)  argument
768         return null !== $encoding ? 'pass' === $encoding : 'pass';
771     public static function mb_strwidth($s, $encoding = null)  argument
773         $encoding = self::getEncoding($encoding);
775         if ('UTF-8' !== $encoding) {
776             $s = iconv($encoding, 'UTF-8//IGNORE', $s);
784     public static function mb_substr_count($haystack, $needle, $encoding = null)  argument
794     public static function mb_chr($code, $encoding = null)  argument
806         if ('UTF-8' !== $encoding = self::getEncoding($encoding)) {
807             $s = mb_convert_encoding($s, $encoding, 'UTF-8');
813     public static function mb_ord($s, $encoding = null)  argument
815         if ('UTF-8' !== $encoding = self::getEncoding($encoding)) {
816             $s = mb_convert_encoding($s, 'UTF-8', $encoding);
837 …length, string $pad_string = ' ', int $pad_type = \STR_PAD_RIGHT, ?string $encoding = null): string  argument
843         if (null === $encoding) {
844             $encoding = self::mb_internal_encoding();
846 …self::assertEncoding($encoding, 'mb_str_pad(): Argument #5 ($encoding) must be a valid encoding, "…
849         if (self::mb_strlen($pad_string, $encoding) <= 0) {
853         $paddingRequired = $length - self::mb_strlen($string, $encoding);
861 …self::mb_substr(str_repeat($pad_string, $paddingRequired), 0, $paddingRequired, $encoding).$string;
863 …$string.self::mb_substr(str_repeat($pad_string, $paddingRequired), 0, $paddingRequired, $encoding);
868 …leftPaddingLength, $encoding).$string.self::mb_substr(str_repeat($pad_string, $rightPaddingLength)…
872     public static function mb_ucfirst(string $string, ?string $encoding = null): string  argument
874         if (null === $encoding) {
875             $encoding = self::mb_internal_encoding();
877 …self::assertEncoding($encoding, 'mb_ucfirst(): Argument #2 ($encoding) must be a valid encoding, "…
880         $firstChar = mb_substr($string, 0, 1, $encoding);
881         $firstChar = mb_convert_case($firstChar, \MB_CASE_TITLE, $encoding);
883         return $firstChar.mb_substr($string, 1, null, $encoding);
886     public static function mb_lcfirst(string $string, ?string $encoding = null): string  argument
888         if (null === $encoding) {
889             $encoding = self::mb_internal_encoding();
891 …self::assertEncoding($encoding, 'mb_lcfirst(): Argument #2 ($encoding) must be a valid encoding, "…
894         $firstChar = mb_substr($string, 0, 1, $encoding);
895         $firstChar = mb_convert_case($firstChar, \MB_CASE_LOWER, $encoding);
897         return $firstChar.mb_substr($string, 1, null, $encoding);
900     private static function getSubpart($pos, $part, $haystack, $encoding)  argument
906             return self::mb_substr($haystack, 0, $pos, $encoding);
909         return self::mb_substr($haystack, $pos, null, $encoding);
951     private static function getEncoding($encoding)  argument
953         if (null === $encoding) {
957         if ('UTF-8' === $encoding) {
961         $encoding = strtoupper($encoding);
963         if ('8BIT' === $encoding || 'BINARY' === $encoding) {
967         if ('UTF8' === $encoding) {
971         return $encoding;
974 …public static function mb_trim(string $string, ?string $characters = null, ?string $encoding = nul…  argument
976 …return self::mb_internal_trim('{^[%s]+|[%1$s]+$}Du', $string, $characters, $encoding, __FUNCTION__…
979 …public static function mb_ltrim(string $string, ?string $characters = null, ?string $encoding = nu…  argument
981         return self::mb_internal_trim('{^[%s]+}Du', $string, $characters, $encoding, __FUNCTION__);
984 …public static function mb_rtrim(string $string, ?string $characters = null, ?string $encoding = nu…  argument
986         return self::mb_internal_trim('{[%s]+$}D', $string, $characters, $encoding, __FUNCTION__);
989 …ernal_trim(string $regex, string $string, ?string $characters, ?string $encoding, string $function…  argument
991         if (null === $encoding) {
992             $encoding = self::mb_internal_encoding();
994 …self::assertEncoding($encoding, $function.'(): Argument #3 ($encoding) must be a valid encoding, "…
998             return null === $encoding ? $string : self::mb_convert_encoding($string, $encoding);
1001         if ('UTF-8' === $encoding) {
1002             $encoding = null;
1010             $string = iconv($encoding, 'UTF-8//IGNORE', $string);
1013                 $characters = iconv($encoding, 'UTF-8//IGNORE', $characters);
1025         if (null === $encoding) {
1029         return iconv('UTF-8', $encoding.'//IGNORE', $string);
1032     private static function assertEncoding(string $encoding, string $errorFormat): void  argument
1035             $validEncoding = @self::mb_check_encoding('', $encoding);
1037             throw new \ValueError(sprintf($errorFormat, $encoding));
1042             throw new \ValueError(sprintf($errorFormat, $encoding));