1--TEST-- 2Optional parameter before variadic parameter 3--FILE-- 4<?php 5 6function f($reqParam, $optParam = null, ...$params) { 7 var_dump($reqParam, $optParam, $params); 8} 9 10f(1); 11f(1, 2); 12f(1, 2, 3); 13f(1, 2, 3, 4); 14f(1, 2, 3, 4, 5); 15 16?> 17--EXPECT-- 18int(1) 19NULL 20array(0) { 21} 22int(1) 23int(2) 24array(0) { 25} 26int(1) 27int(2) 28array(1) { 29 [0]=> 30 int(3) 31} 32int(1) 33int(2) 34array(2) { 35 [0]=> 36 int(3) 37 [1]=> 38 int(4) 39} 40int(1) 41int(2) 42array(3) { 43 [0]=> 44 int(3) 45 [1]=> 46 int(4) 47 [2]=> 48 int(5) 49} 50