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@ 2016-02-02T13:36:19Z

<?php
$var = 1010;
$pos = 1;

var_dump(checkBit($var, $pos));

function checkBit($var, $pos) {
 return ($var & (1<<$pos));
}

Output
Performance
VLD
References
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var_dump: documentation ( source)

preferences:dark modelive preview

49.97 ms | 402 KiB | 5 Q