<?php
        $start = microtime(TRUE);
        $md5 = md5('The quick fox jumped over the lazy dog.');
        $seconds = (microtime(TRUE) - $start) * 1000;
        echo "That took: {$seconds} seconds\n";

        $start = microtime(TRUE);
        $md5 = bin2hex(md5('The quick fox jumped over the lazy dog.', TRUE));
        $seconds = (microtime(TRUE) - $start) * 1000;
        echo "That took: {$seconds} seconds\n";
?>