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@ 2014-04-29T19:55:09Z

<?php
function show($v) { echo "$v\n"; }

for($i = 0; $i < 1000; $i++) {
    if (pow(2, $i) !== 1 << $i) {
        show(pow(2, $i));
        show(1 << $i);
        break;
    }
}

Output
Performance
VLD
References
Branches

pow: documentation ( source)

preferences:dark modelive preview

31.92 ms | 402 KiB | 5 Q