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<?php $startTime = microtime(true); for ($i = 0; $i < 16; ++$i) { str_repeat('%d ', 12500); } $t=microtime(true) - $startTime; var_dump($t,number_format($t,10));
Output for git.master
float(3.2901763916015625E-5) string(12) "0.0000329018"

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