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@ 2015-03-27T01:51:58Z

<?php

var_dump((bool)NULL);
var_dump((bool)FALSE);
var_dump((bool)0);
var_dump((bool)TRUE);
var_dump((bool)1);
var_dump((bool)'1');

Output
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var_dump: documentation ( source)

preferences:dark modelive preview

56.2 ms | 402 KiB | 5 Q