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@ 2017-03-29T15:15:23Z

<?php

var_dump(
    filter_var('true', FILTER_VALIDATE_BOOLEAN),
    filter_var('false', FILTER_VALIDATE_BOOLEAN)
);

Output
Performance
VLD
References
Branches

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

preferences:dark modelive preview

61.22 ms | 402 KiB | 5 Q