mb_regex_encoding Set/Get character encoding for multibyte regex &reftitle.description; stringboolmb_regex_encoding stringnullencoding&null; Set/Get character encoding for a multibyte regex. &reftitle.parameters; encoding &mbstring.encoding.parameter; &reftitle.returnvalues; If encoding is set, then &return.success; In this case, the internal character encoding is NOT changed. If encoding is omitted, then the current character encoding name for a multibyte regex is returned. &reftitle.changelog; &Version; &Description; &mbstring.changelog.encoding-nullable; &reftitle.seealso; mb_internal_encoding mb_ereg