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@ 2015-03-23T07:13:07Z

<?php

$x = new \ArrayObject(["x" => 1]);
$z = new \ArrayObject(["z" => 3]);
$y = array_merge(["y" => 2], $x);
var_dump($y);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
array_merge: documentation ( source)

preferences:dark modelive preview

56.73 ms | 402 KiB | 5 Q