Online PHP editor | refs for p4sTj

@ 2014-03-03T14:52:35Z

<?php

$x = 1;
$a = 2;

function foo(&$x) {

    return function () use (&$x) {
        return $x;
    };
}


$y = foo($a);
$z = foo($x);

var_dump($y(), $z());

$x = 100;

var_dump($y(), $z());