| < ?php |
| class runtime |
| { |
| var $StartTime = 0; |
| var $StopTime = 0; |
| function get_microtime() |
| { |
| list($usec, $sec) = explode(' ', microtime()); |
| return ((float)$usec + (float)$sec); |
| } |
| function start() |
| { |
| $this->StartTime = $this->get_microtime(); |
| } |
| function stop() |
| { |
| $this->StopTime = $this->get_microtime(); |
| } |
| function spent() |
| { |
| return round(($this->StopTime - $this->StartTime) * 1000, 1); |
| } |
| } |
| //例子 |
| $runtime= new runtime; |
| $runtime->start(); |
| //你的代码开始 |
| $a = 0; |
| for($i=0; $i<1000000; $i++) |
| { |
| $a += $i; |
| } |
| //你的代码结束 |
| $runtime->stop(); |
| echo "页面执行时间: ".$runtime->spent()." 毫秒"; |
| ?> |
转：http://www.ccvita.com/26.html
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