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run code in 300+ PHP versions simultaneously
<?php function chrono() { $temps = explode(' ', microtime()); return $temps[0]+$temps[1]; } $debut = chrono(); for($i=0;$i<1000;$i++){ md5('vfdsgdfg'.rand(1999999999,9999999999)); } echo round(chrono()-$debut,10);

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55.73 ms | 402 KiB | 5 Q