<?php $count = 50; $start = microtime(true); $y = 0; // for($i = 0; $i < $count; $i++) // { $code = ' $ret = ""; for ($i=0; $i<100; $i++) { $ret.= md5($i.$ret); } return $ret; '; eval($code); // } printf("#1, result is %d, done in %f\n", $y, microtime(true) - $start); $start = microtime(true); $y = 0; // for($i = 0; $i < $count; $i++) // { $f = function() { // return ++$y; $ret = ''; for ($i=0; $i<100; $i++) { $ret.= md5($i.$ret); } return $ret; }; $f(); // } printf("#2, result is %d, done in %f\n", $y, microtime(true) - $start); $fName = create_function('', $code); $fName(); printf("#3, done in %f\n", microtime(true) - $start); ?>
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