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@ 2014-10-09T07:13:53Z

<?php

var_dump('none' !== 'none');
var_dump(!'none' !== 'none');

var_dump('none2' !== 'none');
var_dump(!'none2' !== 'none');

Output
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var_dump: documentation ( source)

preferences:dark modelive preview

32.5 ms | 402 KiB | 5 Q