How to write a function to calculate the execution time of a page in PHP
- 高洛峰Original
- 2016-10-14 11:01:591152browse
<?php
/*
@ 计算php程序运行时间
*/
function microtime_float()
{
list($usec, $sec) = explode(” “, microtime());
return ((float)$usec + (float)$sec);
}
//开始计时，放在头部
$starttime = microtime_float();
//结束计时，放在最底部
$runtime = number_format((microtime_float() – $starttime), 4).'s';
//输出
echo ‘RunTime:'.$runtime;
?>
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