PHP 计算页面执行时间_PHP教程

2016-07-13 10:37 1046浏览原创

自己写了个计算页面执行时间的脚本
执行时间会显示在页面右上角
优点是只要在开始的时候执行一下就可以了

代码片段(1)

[代码] [PHP]代码

01 <code class="plain"><?php 02 <code class="variable">$t <code class="plain">= <code class="keyword">new <code class="plain">executeTime; 03 04 <code class="plain">phpinfo(); 05 06 <code class="keyword">class <code class="plain">executeTime{ 07 <code class="spaces"> <code class="keyword">private <code class="variable">$microtime<code class="plain">; 08 <code class="spaces"> <code class="keyword">public <code class="keyword">function <code class="plain">__construct(){ 09 <code class="spaces"> <code class="variable">$this<code class="plain">->microtime = microtime(true); 10 <code class="spaces"> <code class="plain">} 11 12 <code class="spaces"> <code class="keyword">public <code class="keyword">function <code class="plain">getNow(){ 13 <code class="spaces"> <code class="variable">$this<code class="plain">->__dectruct(); 14 <code class="spaces"> <code class="plain">} 15 16 <code class="spaces"> <code class="keyword">public <code class="keyword">function <code class="plain">__destruct(){ 17 <code class="spaces"> <code class="keyword">if <code class="plain">(<code class="functions">empty<code class="plain">(<code class="variable">$_SERVER<code class="plain">[<code class="string">'REQUEST_TIME_FLOAT'<code class="plain">])) 18 <code class="spaces"> <code class="functions">echo

<code class="string">'<div style="color:#fff;background:#000;position:absolute;top:0px;right:0px;padding:3px 6px;">本次执行时间：'<code class="plain">, microtime(TRUE) -

<code class="variable">$this<code class="plain">->microtime, <code class="string">'秒

'<code class="plain">; 19 <code class="spaces"> <code class="keyword">else 20 <code class="spaces"> <code class="functions">echo

<code class="string">'<div style="color:#fff;background:#000;position:absolute;top:0px;right:0px;padding:3px 6px;">本次执行时间：'<code class="plain">, microtime(TRUE) -

<code class="variable">$_SERVER<code class="plain">[<code class="string">'REQUEST_TIME_FLOAT'<code class="plain">], <code class="string">'秒

'<code class="plain">; 21 <code class="spaces"> <code class="plain">} 22 <code class="plain">}