Req #68029 [Com]: PHP and monotonic date time

Edit report at https://bugs.php.net/bug.php?id=68029&edit=1 ID: 68029 Comment by: roberto at spadim dot com dot br Reported by: roberto at spadim dot com dot br Summary: PHP and monotonic date time Status: Open Type: Feature/Change Request Package: Date/time related Operating System: any PHP Version: 5.6.1RC1 Block user comment: N Private report: N New Comment: example with linux clock_gettime https://github.com/php/php-src/blob/128eda843f7dff487fff529a384fee3c5494e0f6/sapi/fpm/fpm/fpm_clock.c Previous Comments: ------------------------------------------------------------------------ [2014-09-16 16:14:48] roberto at spadim dot com dot br functions to be used http://tdistler.com/2010/06/27/high-performance-timing-on-linux-windows linux: int clock_gettime(clockid_t clock_id, struct timespec *tp); http://pubs.opengroup.org/onlinepubs/000095399/functions/clock_getres.html windows: BOOL WINAPI QueryPerformanceCounter(LARGE_INTEGER lpPerformanceCount); http://msdn.microsoft.com/en-us/library/ms644904(v=VS.85).aspx ------------------------------------------------------------------------ [2014-09-16 16:07:39] roberto at spadim dot com dot br Description: ------------ Hi guys i didn't found a monotonic clock function for example: <?php system("date -s \"2014-09-16 13:01:00 BRT\"");sleep(1); echo microtime(1)."\n"; system("date -s \"2014-09-16 13:01:00 BRT\""); echo microtime(1)."\n"; ?> this script output # php date.php Tue Sep 16 13:01:00 BRT 2014 1410883261.0003 Tue Sep 16 13:01:00 BRT 2014 1410883260.0002 the clock is ok since i changed the date time, but, how to use a monotonic clock? i just found clock_gettime() using CLOCK_MONOTONIC with FPM (php-src/sapi/fpm/fpm/fpm_clock.c), but it don't export functions to php script space, maybe we could implement a monotonic clock function? Test script: --------------- <?php system("date -s \"2014-09-16 13:01:00 BRT\"");sleep(1); echo microtime(1)."\n"; system("date -s \"2014-09-16 13:01:00 BRT\""); echo microtime(1)."\n"; ?> Expected result: ---------------- correct output, since it's a feature request ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=68029&edit=1