Question

我正在一个工作场所工作的网站上工作。小时数是根据它们进入（开始）和退出（结束）的时间计算的。结束 - 开始=总计。我已成功计算出开始和结束之间的差异。 start，end和total将插入到DB中。＆＃34; Shift total＆＃34;来自db中的总数的SQL SUM。最后一个foreach语句是有问题的代码。我想格式化＆＃34; Shift total＆＃34;为00:00:00所以它将显示为00:01:26而不是126.我已经尝试了＃34;。 $ row [＆＃39; SUM（总计）＆＃39;] +＆＃39; 00：00：00＆＃39; 。＆＃34;但它没有用。关于我应该怎么做的任何建议？提前致谢。我先将结果粘贴到代码中。

____开始____________端____________总

10:44:46 AM     10:44:49 AM     00:00:03
10:50:12 AM     10:50:14 AM     00:00:02
10:50:27 AM     10:50:32 AM     00:00:05
11:12:02 AM     11:13:18 AM     00:01:16
                 Shift total --> 126

$sql3 = "SELECT date, startTime, endTime, total FROM timeSheet WHERE userName='$user_name'";
$sql4 = "SELECT SUM(total) FROM timeSheet WHERE userName='$user_name'";
echo "<table border='1'>
     <tr>
     <th>date</th>
     <th>start</th>
     <th>end</th>
     <th>total</th>
     </tr>";
foreach ($conn->query($sql3) as $row) { 
    $start = explode (" ", $row['startTime']);
    $end = explode(" ", $row['endTime']);
    if ($start[1] == '00:00:00'){
        $start[1] = '0';
    }else if ($end[1] == '00:00:00'){
        $end[1] = '0';
    }else{        
        $start[1] = date("h:i:s A", strtotime($start[1]));
        $end[1] = date("h:i:s A", strtotime($end[1]));
    }

    echo "<tr>
     <th>" . $row['date'] . "</th>
     <th>" . $start[1] . "</th>
     <th>" . $end[1] . "</th>
     <th>" . $row['total'] . "</th>
     </tr>";
}
foreach ($conn->query($sql4) as $row) { 
    echo "<tr>
            <th></th>
            <th></th>
            <th>SUM</th>
            <th>". $row['SUM(total)']  . "</th>
        </tr>";
}
echo "</table>";

Answer 1

您可以使用TIME函数执行此操作：

$sql4 = "SELECT TIME(SUM(total)) AS totalSum FROM timeSheet WHERE userName='$user_name'";
//....
foreach ($conn->query($sql4) as $row) { 
echo "<tr>
        <th></th>
        <th></th>
        <th>SUM</th>
        <th>". $row['totalSum'] . "</th>
    </tr>";
}

<强>提示：实际上，您不需要数据库中的total列。你可以使用即

SELECT date, startTime, endTime, TIMEDIFF(startTime, endTime) AS total FROM timeSheet WHERE userName='$user_name'"

和

SELECT TIME(SUM(TIMEDIFF(startTime, endTime))) AS totalSum FROM timeSheet WHERE userName='$user_name'

有关详细信息，请查看：http://dev.mysql.com/doc/refman/5.5/en/date-and-time-functions.html#function_timediff

将时间戳的总和显示为00:01:26而不是126

1 个答案: