php 如何找到php执行时间？
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时间：2020-08-25 12:10:11 来源:igfitidea点击:
How to find php execution time?
提问by
I have a large PHP code in my website, I want to know the execution timeof processing. How can I do this?
我的网站中有大量的 PHP 代码，我想知道处理的执行时间。我怎样才能做到这一点？
<?php
// large code
// large code
// large code
// print execution time here
?>
回答by
You can use microtimeas the startand endof your PHP code:
您可以使用microtime作为PHP 代码的开始和结束：
<?php
$time_start = microtime(true);
sleep(1);
$time_end = microtime(true);
$time = $time_end - $time_start;
echo "Process Time: {$time}";
// Process Time: 1.0000340938568
?>
As of PHP 5.4.0, there is no need to get start time at the beginning,
the $_SERVERsuperglobal array already has it:
从 PHP 5.4.0开始，不需要获取开始时间，$_SERVER超全局数组已经有了：
<?php
sleep(1);
$time = microtime(true) - $_SERVER["REQUEST_TIME_FLOAT"];
echo "Process Time: {$time}";
// Process Time: 1.0061590671539
?>
