note 104053 added to function.microtime

I use this for measure duration of script execution. This function should be defined (and of couse first call made) as soon as possible. <?php /** * get execution time in seconds at current point of call in seconds * @return float Execution time at this point of call */ function get_execution_time() { static $microtime_start = null; if($microtime_start === null) { $microtime_start = microtime(true); return 0.0; } return microtime(true) - $microtime_start; } get_execution_time(); ?> However it is true that result depends of gettimeofday() call. ([jamie at bishopston dot net] wrote this & I can confirm) If system time change, result of this function can be unpredictable (much greater or less than zero). ---- Server IP: 69.147.83.197 Probable Submitter: 62.240.163.46 ---- Manual Page -- http://www.php.net/manual/en/function.microtime.php Edit -- https://master.php.net/note/edit/104053 Del: integrated -- https://master.php.net/note/delete/104053/integrated Del: useless -- https://master.php.net/note/delete/104053/useless Del: bad code -- https://master.php.net/note/delete/104053/bad+code Del: spam -- https://master.php.net/note/delete/104053/spam Del: non-english -- https://master.php.net/note/delete/104053/non-english Del: in docs -- https://master.php.net/note/delete/104053/in+docs Del: other reasons-- https://master.php.net/note/delete/104053 Reject -- https://master.php.net/note/reject/104053 Search -- https://master.php.net/manage/user-notes.php