<?php $starttime = microtime(true); $sArr = array(); for ($i = 0; $i < 300000; $i++) { $sArr[] = 'String concatenation. ' . $i; } $str = implode('', $sArr); $x = md5($str); $endtime = microtime(true); print "array append & implode: " . ($endtime - $starttime) . " s\n" ;
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