靈琥 10-8-2007 10:46 PM
测试某段code所用的时间
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<?php
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// this code is used to calculate the execution time of an area code0H)jD~2J*ryJ*_E
// the time execution is store in variable $_timelL?!BI&Rt~
// usage: start_timer(); <THE CODE> end_timer();
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// code by zed 10 AUG 2007oB6VX`o;s-t{
function start_timer(){
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global $s;+Z7DZy}*kEKg
$s = microtime();^s"l9K$?1q:h
}
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function end_timer(){
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$e = microtime();p+Q
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global $s,$_time; I2Q
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$t1=explode(' ',$s);nnbHx VT
$t2=explode(' ',$e);'[&x1cWeW Hg!P
$_time = ($t2[0]+$t2[1])-($t1[0]+$t1[1]);
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?>[/code]
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这个code的function是用来计算你的php某段code执行所需时间
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例子:
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[code]start_timer();r2`xQ0d8{zCE&th
for($i=0;$i<200;$i++){(@Ty\%~
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end_timer();}1eUD|E+F
echo $_time;[/code]