mb_regex_encoding Returns current encoding for multibyte regex as string &reftitle.description; mixedmb_regex_encoding stringencoding Returns the current encoding for a multibyte regex as a string. &reftitle.parameters; encoding &mbstring.encoding.parameter; &reftitle.returnvalues; Returns the character encoding used by multibyte regex functions. &reftitle.seealso; mb_internal_encoding mb_ereg