// mt_get: returns the current microtime function mt_get(){ global $mt_time; list($usec, $sec) = explode(" ", microtime()); return ((float)$usec + (float)$sec); } // mt_start: starts the microtime counter function mt_start(){ global $mt_time; $mt_time = mt_get(); } // mt_end: calculates the elapsed time function mt_end($len=4){ global $mt_time; $time_end = mt_get(); return round($time_end - $mt_time, $len); } //Example: // start timer: mt_start(); // put a long operation or // something similar in here: for ($x=0; $x < 5000; $x++){ print ($x % 2) ? '<!-- foo -->' : ''; } // calculate elapsed time $time = mt_end(); print "<br/><br/>The page needed ".$time." seconds to load.";