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@ 2013-07-27T21:55:08Z

<?php
// Everything you enter here will be executed by our servers. Try it!
$cParentID = 0;
var_dump($cParentID != null);
var_dump($cParentID != 0);
var_dump($cParentID);

Output
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var_dump: documentation ( source)

preferences:dark modelive preview

43.02 ms | 402 KiB | 5 Q