怎么计算一个程序的执行时间
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- 2016-06-13 09:53:291210browse
function getmicrotime(){
list($usec, $sec) = explode(" ",microtime());
return ((float)$usec (float)$sec);
}
$time_start = getmicrotime();//开始计时, 放在程序头
for ($i=0; $i
//do nothing, 1000 times
}
$time_end = getmicrotime();//结束计时, 放在尾部
$time = $time_end - $time_start;
echo "Did nothing in $time seconds";
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