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@ 2013-06-06T19:02:18Z

<?php
$msb =  -1 * pow(2,62);
for ($i=61; $i >= 0; $i--) {
	$result = pow(2,$i);
	$msb += $result;
}
echo '***',$msb,'****';

Output
Performance
VLD
References
Branches

pow: documentation ( source)

preferences:dark modelive preview

37.5 ms | 402 KiB | 5 Q