- PHP 手册
- 函数参考
- 日期与时间相关扩展
- HRTime
- HRTime\StopWatch
HRTime\StopWatch::getElapsedTime
(PECL hrtime >= 0.4.3)
HRTime\StopWatch::getElapsedTime — Get elapsed time for all intervals
说明
public HRTime\StopWatch::getElapsedTime(int$unit = ?): float
Get elapsed time for all the previously closed intervals.
参数
-
unit -
Time unit represented by a HRTime\Unit constant. Default is HRTime\Unit::SECOND.
返回值
Returns float indicating elapsed time.
User Contributed Notes 1 note
up down 0 j_jaberi at yahoo dot com ¶2 years ago
As not mentioned, if used with invalid unit value, it uses default one:
<?php
$stopWatch = new HRTime\StopWatch();
$stopWatch->start();
for($i=0; $i<10000000; $i++);
$stopWatch->stop();
echo $stopWatch->getElapsedTime(-1) . ' - ' .
$stopWatch->getElapsedTime(0) . ' - ' .
$stopWatch->getElapsedTime(1) . ' - ' .
$stopWatch->getElapsedTime(2) . ' - ' .
$stopWatch->getElapsedTime(3) . ' - ' .
$stopWatch->getElapsedTime(4);
?>
Outputs soething like:
0.11936771 - 0.11936771 - 119.36771 - 119367.71 - 119367710 - 0.11936771
add a note
官方地址：https://www.php.net/manual/en/hrtime-stopwatch.getelapsedtime.php