Question

我想用totalscore / totalevaluatedcalls计算运行时间的平均值，这是100.我可以用php做到这一点......之后的表格是我的代码。在这方面我可以帮助我。总评估的电话是来自db的emp id计数。

empid    agentname    totalevaluatedcalls     totalscore     avaragescore
=========================================================================
1       xyz            2                      200             100


total evaluatedcalls query
========================== 

foreach($dbh->query("SELECT COUNT(*) as cnt FROM eval where empid=$empid") as $test) {  
    echo "<table ><tr ><td style='border: 0px; '>" . $test['cnt'] . "</td></tr></table>";
}

?>

total score query
========================== 


foreach($dbh->query("SELECT SUM(totalscore) as cnt FROM eval where empid = $empid") as $leavecount) {  
    echo "<table ><tr ><td style='border: 0px; ' >" . $leavecount['cnt'] . "</td></tr></table>";
}
?>

Answer 1

使用查询

foreach($dbh->query("select count(*) as cnt,sum(totalscore) as tot from eval where empid=$empid") as $data)
{
   $avg=($data['cnt']/$data['tot'])*100;
}

Answer 2

合并此查询

foreach($dbh->query("SELECT COUNT(*) as cnt, SUM(totalscore) as totalscore, SUM(totalscore)/SUM(totalevaluatedcalls) as averagescore
                FROM eval 
                where empid= $empid 
           ") as $test) 
                     {  
echo "<table ><tr ><td style='border: 0px; '>" . $test['cnt'] . "</td><td style='border: 0px; '>" . $test['totalscore'] . "</td><td style='border: 0px; '>" . $test['averagescore'] . "</td></tr></table>";    

            }

如何在PHP中获得平均分数

2 个答案: