PHP implements web page execution timing function

microtime(): Get millisecond-level UNIX timestamp

<?php
$t=microtime();
/*
你要执行的代码
*/
echo "哦啦啦啦啦啦啦啦";
$t=microtime()-$t;
echo "<br>本次代码执行用了$t毫秒.";
?>

The above introduces the implementation of web page execution timing function in PHP, including aspects of content. I hope it will be helpful to friends who are interested in PHP tutorials.