Php/docs/class.hrtime-unit
From Get docs
(PECL hrtime >= 0.4.3)
Introduction
Class synopsis
HRTime\Unit {
const
int
SECOND
= 0
const
int
MILLISECOND
= 1
const
int
MICROSECOND
= 2
const
int
NANOSECOND
= 3
/* Methods */
}
Predefined Constants
HRTime\Unit::SECOND
HRTime\Unit::MILLISECOND
HRTime\Unit::MICROSECOND
HRTime\Unit::NANOSECOND
/* Constants */