<?php $start = microtime(1); for ($i =0; $i < 10000; $i++) { mt_rand(); } echo (microtime(1) - $start) . "\n"; $start = microtime(1); for ($i =0; $i < 10000; $i++) { md5(microtime(true)); } echo (microtime(1) - $start) . "\n"; $start = microtime(1); for ($i =0; $i < 10000; $i++) { uniqid(true); } echo (microtime(1) - $start) . "\n";
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