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ahsankhatri/powerOfTwo.php

Created February 6, 2017 07:32
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Check if number is a power of 2
Raw
powerOfTwo.php
<?php
function isPowerOfTwo($num)
{
return ($num > 0) && (($num & ($num - 1)) == 0);
}
// var_dump(4);
// var_dump(5);
// var_dump(6);
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