mb_ereg_search_regs() executes the multibyte regular expression match, and if there are some matched part, it returns an array including substring of matched part as first element, the first grouped part with brackets as second element, the second grouped part as third element, and so on. It returns FALSE on error.
The internal encoding or the character encoding specified in mb_regex_encoding() will be used as character encoding.
See also: mb_regex_encoding(), mb_ereg_search_init().