<?php $count = 50; $start = microtime(true); $code = ' $ret = ""; for ($i=0; $i<100; $i++) { $ret.= md5($i.$ret); } return $ret; '; for($i = 0; $i < $count; $i++) { eval($code); } printf("#1, result is %d, done in %f\n", $y, microtime(true) - $start); $start = microtime(true); $f = function() { // return ++$y; $ret = ''; for ($i=0; $i<100; $i++) { $ret.= md5($i.$ret); } return $ret; }; for($i = 0; $i < $count; $i++) { $f(); } printf("#2, result is %d, done in %f\n", $y, microtime(true) - $start); ?>
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