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@ 2015-04-23T14:59:40Z

<?php

var_dump(
	filter_var(false, FILTER_VALIDATE_BOOLEAN, 
		array("flags" => FILTER_NULL_ON_FAILURE)
	)
);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
filter_var: documentation ( source)

preferences:dark modelive preview

43.33 ms | 402 KiB | 5 Q