note 108255 added to function.microtime

I have been getting negative values substracting a later microtime(true) call from an earlier microtime(true) call on Windows with PHP 5.3.8 Produces negative values ------------------------------ for($i = 0; $i<100; $i++) { $x = microtime(true); //short calculation $y = microtime(true); echo ($y-$x) . "\n"; // <--- mostly negatives } Calling usleep(1) seems to work --------------------------------------- for($i = 0; $i<100; $i++) { $x = microtime(true); //short calculation usleep(1); $y = microtime(true); echo ($y-$x) . "\n"; // <--- fixed now } ---- Server IP: 92.48.74.199 Probable Submitter: 88.96.89.222 ---- Manual Page -- http://www.php.net/manual/en/function.microtime.php Edit -- https://master.php.net/note/edit/108255 Del: integrated -- https://master.php.net/note/delete/108255/integrated Del: useless -- https://master.php.net/note/delete/108255/useless Del: bad code -- https://master.php.net/note/delete/108255/bad+code Del: spam -- https://master.php.net/note/delete/108255/spam Del: non-english -- https://master.php.net/note/delete/108255/non-english Del: in docs -- https://master.php.net/note/delete/108255/in+docs Del: other reasons-- https://master.php.net/note/delete/108255 Reject -- https://master.php.net/note/reject/108255 Search -- https://master.php.net/manage/user-notes.php