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@ 2014-09-22T14:48:58Z

<?php
$a1 = array();
$a2 = array('3');
var_dump(array_diff($a1, $a2));
var_dump($a1-$a2);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
array_diff: documentation ( source)

preferences:dark modelive preview

53.23 ms | 402 KiB | 5 Q