1--TEST-- 2filter_var_array() on array with reference 3--SKIPIF-- 4<?php if (!extension_loaded("filter")) die("skip"); ?> 5--FILE-- 6<?php 7 8$array = ["123foo"]; 9$array2 = [&$array]; 10var_dump(filter_var_array($array2, FILTER_VALIDATE_INT)); 11var_dump($array); 12 13?> 14--EXPECT-- 15array(1) { 16 [0]=> 17 &array(1) { 18 [0]=> 19 bool(false) 20 } 21} 22array(1) { 23 [0]=> 24 bool(false) 25} 26