Question

我成功地在codeigniter中动态获取了学生的姓名和主题（生成pdf）。现在，我想获取学生记录以获取如下结果：

Student name   Drawing    Math   Computer
A               89        66     92         
B               65        72     83 
C               62        71     86 
D               78        73     83
E               82        91     82

我正在垂直获取学生姓名，现在我想像上面的数组那样水平排列学生姓名，当前数组是

Array
(
    [0] => Array
    (
        [oral] => 30
        [Written] => 20
        [Drawing] => 10
        [Listening] => 70
    )

    [1] => Array
    (
        [oral] => 20
        [Written] => 60
        [Drawing] => 10
        [Listening] => 40
    )

    ...
)

以下是生成视图的代码，其中学生记录垂直显示：

<?php foreach ($studentrecord as $rec) {?>
    <tr>
        <td width="200px"><span><?php echo $rec['StudentName'];?></span></td>
        <td><span>&nbsp;<?php ?></span></td>

        <td><span>&nbsp;</span></td>
        <td><span>&nbsp;</span></td>
        <td><span>&nbsp;</span></td>
    </tr>
<?php  } ?>

现在我要水平获取标记，该怎么办？

Answer 1

您可以使用它。

<tr>
    <?php foreach ($studentrecord as $rec) { ?>
    <td width="200px"><span><?php echo $rec['StudentName'];?></span></td>
    <?php } ?>
</tr>
<tr>
    <?php foreach ($studentrecord as $rec) { ?>
    <td><span>&nbsp;<?php echo $rec['oral'];?></span></td>
    <?php } ?>
</tr>
<tr>
    <?php foreach ($studentrecord as $rec) { ?>
    <td><span>&nbsp;<?php echo $rec['oral'];?></span></td>
    <?php } ?>
</tr>
<tr>
    <?php foreach ($studentrecord as $rec) { ?>
    <td><span>&nbsp;<?php echo $rec['oral'];?></span></td>
    <?php } ?>
</tr>
<tr>
    <?php foreach ($studentrecord as $rec) { ?>
    <td><span>&nbsp;<?php echo $rec['oral'];?></span></td>
    <?php } ?>
</tr>

Answer 2

有几种方法可以做到。凭直觉，我会做2次循环。

<?php
$array = [["oral"=>12,"writen"=>20],["oral"=>13,"writen"=>15],["oral"=>12,"writen"=>18]];
?>
<!DOCTYPE html>
<html>
  <body>
       <table>
      <tr>
        <th>student</th>
        <th>oral</th>
        <th>writen</th>
      </tr>

        <?php
        foreach($array as $key => $value) {
            // $key is index of student
            // $value is his notes.
            echo "<tr>"; 
            echo "<td>".$key."</td>";
            // need to do a second loop for each mark 
            foreach($value as $key2 ) {
                echo "<td>";
                echo $key2;
                echo "<td>";
            }
            echo "</tr>";
        }
        ?>

    </table>
  </body>

</html>

输出将是： output

Answer 3

您可以尝试此操作，不要忘记验证可能的空白情况

$studentrecord = Array(
                    0 => Array
                    (
                        'oral' => 30,
                        'Written' => 20,
                        'Drawing' => 10,
                        'Listening' => 70
                    ),
                    1 => Array
                    (
                        'oral' => 20,
                        'Written' => 60,
                        'Drawing' => 10,
                        'Listening' => 40
                    )
);

echo "<table border='1'>";
foreach ($studentrecord as $rec) 
{
    echo "<tr><td>".join($rec,"</td><td>")."</td></tr>";
}
echo "</table>";

Answer 4

请尝试一下

        <?php foreach ($studentrecord as $key=> $rec) {?>
        <tr>
            <td width="200px"><span><?php echo $rec[$key]['StudentName'];?></span> 
        </td>
            <td><span>&nbsp;<?php ?></span></td>
            <td><span>&nbsp;</span></td>
            <td><span>&nbsp;</span></td>
            <td><span>&nbsp;</span></td>
        </tr>
        <?php  } ?>

foreach循环中的for循环php

4 个答案: