optstr           3573 ext/mbstring/mbstring.c 	char *optstr = NULL;
optstr           3582 ext/mbstring/mbstring.c 	if (zend_parse_parameters(ZEND_NUM_ARGS(), "s|ss", (char **)&string.val, &string_len, &optstr, &optstr_len, &encname, &encname_len) == FAILURE) {
optstr           3594 ext/mbstring/mbstring.c 	if (optstr != NULL) {
optstr           3595 ext/mbstring/mbstring.c 		char *p = optstr;