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@ 2014-09-26T08:12:38Z

<?php

$t1 = microtime(true);
$i = 1000;
$a;

while ($i--)
{
	$a = 12.23 + 45.1 * (0.5 - 0.21);
}


echo (microtime(true) - $t1) * 1000000;

Output
Performance
VLD
References
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microtime: documentation ( source)

preferences:dark modelive preview

41.04 ms | 402 KiB | 5 Q