HRTime\PerformanceCounter::getFrequency

(PECL hrtime >= 0.4.3)

HRTime\PerformanceCounter::getFrequency — Timer frequency in ticks per second

public int HRTime\PerformanceCounter::getFrequency ( void )

Returns the timer frequency in ticks per second. This value is constant after the system start on almost any operating system.

此函数没有参数。

Returns integer indicating the timer frequency.