Online PHP editor | refs for 9t18g

@ 2015-07-07T14:17:07Z

<?php

$arr1 = array(2, 3);
$arr2 = $arr1;
$arr2[] = 4; // $arr2 is changed,
             // $arr1 is still array(2, 3)
             
$arr3 = &$arr1;
$arr3[] = 4; // now $arr1 and $arr3 are the same

$arr4 = (array)$arr1;
$arr1[] = 4;
var_dump($arr1);
var_dump($arr4);