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@ 2014-07-02T09:36:43Z

<?php

$oldValues = array(1, null, null);
$result = array_reduce($oldValues, function ($carry, $item) {
            var_dump($item);
            return (null !== $carry ? $carry : $item);
        });
var_dump($result);
if (!$result) {
            $oldValues = array();
        }
var_dump($oldValues);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
array_reduce: documentation ( source)

preferences:dark modelive preview

32.57 ms | 402 KiB | 5 Q