Question

我的数据库包含来自我所在地区的优惠。因此，每笔交易都包含一个位置，deal_id（主键），它适用的星期几以及交易本身。

理想情况下，我列出了包含表格标题的数据：

位置，星期一，星期二，星期三......等等。

每行只有一个实例。问题是，我无法实现这一点，到目前为止，它将星期一交易从第一行的第一个位置开始。然后下一行与每天的星期二交易相同，如下所示：

以下是将我的数据转换为HTML表格的PHP代码：我认为错误在我的循环中。不确定如何从一个$行切换到下一个

<!DOCTYPE HTML>
<html lang=en>
    <head>
        <title>Ashdeals</title>
        <meta charset = "UTF-8">
        <link rel="stylesheet" type="text/css" href="stylesheet.css">
    </head>
<body>


    <?php 
    //Create Connection
    $mysqli = new MySQLi("localhost", "root", "", "ashdeals");

    $sql = "SELECT * FROM deals";
     // Query Database  
    $result = $mysqli->query($sql);

    //Count the returned rows
    if ($result->num_rows !=0){
    //Turn results into an array   

         echo "<table>
            <tr>
                <th>Location</th>
                <th>Monday</th>
                <th>Tuesday</th>
                <th>Wednesday</th>
                <th>Thursday</th>
                <th>Friday</th>
                <th>Saturday</th>
                <th>Sunday</th>

            </tr>";
         // output data of each row
         while($row = mysqli_fetch_array($result)) {

             $location = $row['location'];
             $deal = $row['deal'];

             echo 
             "<tr>

             <td>" . $location . "</td>
             <td>" . $deal . "</td>
             <td>" . $deal . "</td>
             <td>" . $deal . "</td>
             <td>" . $deal . "</td>
             <td>" . $deal . "</td>
             <td>" . $deal . "</td>
             <td>" . $deal . "</td>
             </tr>";
         }
         echo "</table>";
    } else {
         echo "0 results";
    }

    ?>

</body>

</html>

Answer 1

简单的解决方案： 切换案例 到每一天。

编辑：每日优惠。

 <!DOCTYPE HTML>
<html lang=en>
    <head>
        <title>Ashdeals</title>
        <meta charset = "UTF-8">
        <link rel="stylesheet" type="text/css" href="stylesheet.css">
    </head>
<body>


    <?php 
    //Create Connection
    $mysqli = new MySQLi("localhost", "root", "", "ashdeals");

    $sql = "SELECT * FROM deals";
     // Query Database  
    $result = $mysqli->query($sql);

    //Count the returned rows
    if ($result->num_rows !=0){
    //Turn results into an array   

         echo "<table>
            <tr>
                <th>Location</th>
                <th>Monday</th>
                <th>Tuesday</th>
                <th>Wednesday</th>
                <th>Thursday</th>
                <th>Friday</th>
                <th>Saturday</th>
                <th>Sunday</th>

            </tr>";
         // output data of each row
         while($row = mysqli_fetch_array($result)) {
             $location = $row['location'];
             $deal = $row['deal'];
             $day = $row['day'];
             $moDeal = ""; // Monday Deal variable. 
             $tuDeal = ""; // Tuesday Deal variable. 
             $weDeal = ""; // Wednesday Deal variable. 
             $thDeal = ""; // Thursday Deal variable. 
             $frDeal = ""; // Friday Deal variable. 
             $saDeal = ""; // Saturday Deal variable. 
             $suDeal = ""; // Sunday Deal variable. 
             switch ($day) {
                 case 'Mo':
                     $moDeal = $deal; 
                     break;
                 case 'Tu':
                     $tuDeal = $deal;
                     break;
                 case 'We':
                     $weDeal = $deal; 
                     break;
                 case 'Th':
                     $thDeal = $deal; 
                     break;
                 case 'Fr':
                     $frDeal = $deal;
                     break;
                 case 'Sa':
                     $saDeal = $deal; 
                     break;
                 case 'Su':
                     $suDeal = $deal; 
                     break;                 
                 default:
                     # In case some daily deal: 
                    $moDeal = $deal; 
                    $tuDeal = $deal; 
                    $weDeal = $deal; 
                    $thDeal = $deal; 
                    $frDeal = $deal; 
                    $saDeal = $deal; 
                    $suDeal = $deal; 
                     break;
             }
             echo 
             "<tr>
             <td>" . $location . "</td>
             <td>" . $moDeal . "</td>
             <td>" . $tuDeal . "</td>
             <td>" . $weDeal . "</td>
             <td>" . $thDeal . "</td>
             <td>" . $frDeal . "</td>
             <td>" . $saDeal . "</td>
             <td>" . $suDeal . "</td>
             </tr>";

         }
         echo "</table>";
    } else {
         echo "0 results";
    }

    ?>

</body>

</html>

Answer 2

直接循环：

$dayArray = ['Monday', 'Tuesday' ..... 'Sunday'];
while($row = mysqli_fetch_array($result)) {

    echo "<tr>";

    echo "<td>" . $row['locationField'] . "</td>";

    foreach ($dayArray as $dayField) {
        if ($dayField == $row['dealDayField'] ) {
            echo "<td>" . $row['dealField'] . "</td>";
        }
        else {
            echo "<td></td>";
        }
    }
    echo "</tr>";
}

echo "</table>";

无需分配$ valueX并且可以回显$ row []，但为了清楚起见，此处显示。

从SQL数据库格式化HTML表

2 个答案: