| Warning |
This function is EXPERIMENTAL. The behaviour of this function, the name of this function, and anything else documented about this function may change without notice in a future release of PHP. Use this function at your own risk. |
mb_regex_set_options() sets the default options described by options for multibyte regex functions.
Returns the previous options. If options is omitted, it returns the string that describes the current options.
See also mb_split(), mb_ereg() and mb_eregi()