Question

我被困在我的PHP（CI + Bootstrap）家庭作业代码中，我将解释它的（简化）细节：

有一个名为“大学”的数据库，其中包含“学生”和“教职员工”表
“学生”表中有一个“ faculty_id”
在“ faculty_profile”视图中，有“在该学院注册的学生”列表

这是我的MVC代码：

型号

function get_data($table)
    {
        return $this->db->get($table);
    }

控制器

public function faculty_profile($id)
    {
        $where = array('faculty_id' => $id);
        $data['faculty'] = $this->db->query("select * from faculty f, students s where f.faculty_id=s.faculty_id and f.faculty_id='$id'")->result();

        $this->load->view('faculty_profile', $data);
    }

查看（简体）

<?php foreach($faculty as $f) { ?>
        <tr>
            <td><?php echo $f->faculty_name?></td>
        </tr>
        <tr>
            <td><?php echo $f->head_of_faculty?></td>
        </tr>
        <tr>
            <td>
                <b>Students enrolled in this faculty</b>
                <?php echo $f->students_name?>
            </td>
        </tr>
    <?php } ?>

（简化的）结果如下（我在同一系中登记了两行）：

------
Information Technology //faculty_name
Mr. Henry //head_of_faculty
Students enrolled in this faculty
Adam
------
------
Information Technology //faculty_name
Mr. Henry //head_of_faculty
Students enrolled in this faculty
Brian
------

下面就是我想要的样子：

------
Information Technology //faculty_name
Mr. Henry //head_of_faculty
Students enrolled in this faculty
Adam
Brian
------

问题是，我必须在哪里修补才能获得想要的结果？

哦，我已经试过像这样放置2个foreach：

<?php foreach($faculty as $f) { ?>
        <tr>
            <td><?php echo $f->faculty_name?></td>
        </tr>
        <tr>
            <td><?php echo $f->head_of_faculty?></td>
        </tr>
        <?php foreach($faculty as $f) { ?>
        <tr>
            <td>
                <b>Students enrolled in this faculty</b>
                <?php echo $f->students_name?>
            </td>
        </tr>
        <?php } ?>
    <?php } ?>

结果如下：

------
Information Technology //faculty_name
Mr. Henry //head_of_faculty
Students enrolled in this faculty
Adam
Brian
------
------
Information Technology //faculty_name
Mr. Henry //head_of_faculty
Students enrolled in this faculty
Adam
Brian
------

在此先感谢您的帮助，

Answer 1

您提到视图“ faculty_profile”仅显示该学院的在校学生。这意味着它将只显示1个教员。因此，您无需循环$ faculty。如下更改您的控制器代码。

        $data['faculty'] = $this->db->query("select * from faculty f where f.faculty_id='$id'")->result();
        $data['faculty']['students'] = $this->db->query("select * from students s where s.faculty_id='$id'")->result();
        $this->load->view('faculty_profile', $data);

如下更改视图

        <tr>
            <td><?php echo $faculty->faculty_name?></td>
        </tr>
        <tr>
            <td><?php echo $faculty->head_of_faculty?></td>
        </tr>
        <tr><td>Students enrolled in this faculty</td></tr>
        <?php foreach($faculty['students'] as $student ) { ?>
            <tr>
                <td>
                    <?php echo $student->students_name?>
                </td>
            </tr>
        <?php } ?>

如何从“学生”表中显示与“ faculty”表中具有相同faculty_id的名称？

1 个答案: