The HRTime\PerformanceCounter class2024-03-29T08:07:46+00:00tag:php.net,2009-10-13:/manual/en/file/class.hrtime-performancecounterPhDPHP Documentation GroupHRTime\PerformanceCounter::getFrequency -- Timer frequency in ticks per second2024-03-29T08:07:46+00:00tag:php.net,2009-10-13:/manual/en/hrtime-performancecounter.getfrequencyHRTime\PerformanceCounter::getTicks -- Current ticks from the system2024-03-29T08:07:46+00:00tag:php.net,2009-10-13:/manual/en/hrtime-performancecounter.getticksHRTime\PerformanceCounter::getTicksSince -- Ticks elapsed since the given value2024-03-29T08:07:46+00:00tag:php.net,2009-10-13:/manual/en/hrtime-performancecounter.gettickssince