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PHP官方手册 - 互联网笔记

PHP - Manual: 简介

2024-04-28

简介

The HRTime extension implements a high resolution StopWatch class. It uses the best possible APIs on different platforms which brings resolution up to nanoseconds. It also makes possible to implement a custom stopwatch using low level ticks delivered by the underlaying APIs.

注意: As of PHP 7.3.0 the related function hrtime() is part of the core.

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官方地址:https://www.php.net/manual/en/intro.hrtime.php

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