PHP获取MySQL执行sql语句的查询时间

16lz 2021-01-22

//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);
}

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