Online PHP editor | refs for 7MOpo

@ 2015-12-27T05:53:43Z

<?php

function setByLink( Array $tree, &$dst ) {
    $dst = $tree[0];
    $tree[] = 'Hi';
}

$tree = new ArrayObject([
    new ArrayObject([
        1,
        2
    ]),
    3
]);

setByLink( $tree, $arr );
$arr[] = 'Hello';
var_dump( is_array( $tree ), $tree );