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@ 2013-03-10T07:52:58Z

<?php
$data = NULL; ++$data['wok'];
var_dump($data);
$data = NULL; $data['wok'] = $data['wok'] + 1;

Output
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var_dump: documentation ( source)

preferences:dark modelive preview

35.06 ms | 402 KiB | 5 Q