Online PHP editor | refs for 3HkUv

@ 2016-01-01T22:50:11Z

<?php

$v = array(10, 20); $a = 'v';
$$a[0] = 5;       // $v is [5, 20]
var_dump($v);
$v = array(10, 20); $a = 'v';
${$a[0]} = 5;   // $v is 5
var_dump($v);
$v = array(10, 20); $a = 'v';
${$a}[0] = 5;   // $ gets first shot at $a, $v is [5, 20]
var_dump($v);