arg_old          3203 ext/mbstring/mbstring.c 	zval *arg_old = NULL;
arg_old          3210 ext/mbstring/mbstring.c 	if (zend_parse_parameters(ZEND_NUM_ARGS(), "ss|z", &arg_str, &str_len, &arg_new, &new_len, &arg_old) == FAILURE) {
arg_old          3214 ext/mbstring/mbstring.c 	if (arg_old) {
arg_old          3215 ext/mbstring/mbstring.c 		switch (Z_TYPE_P(arg_old)) {
arg_old          3217 ext/mbstring/mbstring.c 				target_hash = Z_ARRVAL_P(arg_old);
arg_old          3242 ext/mbstring/mbstring.c 				convert_to_string(arg_old);
arg_old          3243 ext/mbstring/mbstring.c 				_from_encodings = Z_STRVAL_P(arg_old);