mb_split Split multibyte string using regular expression arraymb_split stringpattern stringstring intlimit &warn.experimental.func; mb_split split multibyte string using regular expression pattern and returns the result as an array. If optional parameter limit is specified, it will be split in limit elements as maximum. The internal encoding or the character encoding specified in mb_regex_encoding will be used as character encoding. This function is supported in PHP 4.2.0 or higher. See also: mb_regex_encoding, mb_ereg.