(转载自CSDN)
方法一:
//计时开始
runtime(); //执行查询
mysql_query($sql); //计时结束.
echo runtime(1); //计时函数
function runtime($mode=0) {
static $t;
if(!$mode) {
$t = microtime();
return;
}
$t1 = microtime();
list($m0,$s0) = explode(" ",$t);
list($m1,$s1) = explode(" ",$t1);
return sprintf("%.3f ms",($s1+$m1-$s0-$m0)*1000);
}
方法二:
$t1=microtime(true);
mysql_query($sql);
echo microtime(true)-$t1;