如何在codeigniter中动态显示数据库列和数据

Question

我正在从数据库获取表数据并将其显示在数据库中，但出现问题。 数据库中的测验列是在管理员添加测验标记时动态创建的。 现在，当我无法根据测验标题显示每列的数据时。

我可以使用 foreach 在标签中显示测验编号，但无法显示该测验的分数。 请指导我。

//Manage Grades_model.php

public function GetAllQuizMarks()
    {
    	$this->db->select('*');
        $this->db->from('quizmarks');
        
        $query = $this->db->get();
       	return $query->result();
    }

//ManageGrades.php

//this is controller

public function GetAllQuizMarks()
    {
        $data['markslist']=$this->ManageGrades_model->GetAllQuizMarks();
        
        $this->load->view('Manage/GetAllQuizMarks',$data);
    }

//This is view file

<div class="panel-body">
                            
                            <div id="dataTables-example_wrapper" class="dataTables_wrapper form-inline dt-bootstrap no-footer">
                                <div class="row">
                                    <div class="col-sm-12">
                                        <table width="100%" class="table table-striped table-bordered table-hover dataTable no-footer dtr-inline" id="dataTables-example" role="grid" aria-describedby="dataTables-example_info" style="width: 100%;">
                                <thead>
                                    <tr role="row">
                                        <th>Sr #</th>
                                        <th>Name</th>
                                        <th>Roll No.</th>
                                        
                                        
                                        <!-- <th>Actions</th> -->
                                        <?php 
                                    $Counter=1;
                                    
                                    ?>
                                        <?php 
                                        foreach($markslist as $designation)
                                        {
                                        ?><th><?php echo 'quiz'.$Counter;?></th>
                                     <?php 
                                        $Counter++;} 
                                        ?>
                                        
                                    </tr>
                                </thead>
                                <tbody>
                                 <?php 
                                
                                      $Counter1=1;
                                      
                                 foreach($markslist as $designation)
                                        {
                                      ?>   
                                    
                                <tr class="gradeA odd" role="row">
                                    <td class="sorting_1"><?php echo $Counter;?></td>
                                        
                                        <td class="sorting_1"><?php echo $designation->name;?></td>
                                        <td class="sorting_1"><?php echo $designation->rollno;?></td>
                                        
                                        
                                        <td class="sorting_1"><?php echo $designation->'quiz'.$Counter1;?></td>
                                        <!-- <td class="center">
                                            <div class="btn-group">
                                                    
                                                    <a href="<?php echo base_url()?>Mid/EditMid/<?php echo $designation->Id;?>"><button class="btn btn-warning">Update</button></a>
                                                    <a href="<?php echo base_url()?>Mid/DeleteMid/<?php echo $designation->Id;?>"><button class="btn btn-danger">Delete</button></a>
                                            </div>
                                        </td> -->
                                        
                                </tr>
                                      <?php
                                      $Counter1++;
                                    }
                                      ?>
                              </tbody>
                            </table></div></div></div>
                            <!-- /.table-responsive -->
                            
                        
                        </div>

Answer 1

这可能对你有帮助。

//This is view file

<div class="panel-body">

<div id="dataTables-example_wrapper" class="dataTables_wrapper form-inline dt-bootstrap no-footer">
    <div class="row">
        <div class="col-sm-12">
            <table width="100%" class="table table-striped table-bordered table-hover dataTable no-footer dtr-inline" id="dataTables-example" role="grid" aria-describedby="dataTables-example_info" style="width: 100%;">
                <thead>
                    <tr role="row">
                        <th>Sr #</th>
                        <th>Name</th>
                        <th>Roll No.</th>
                        <th>Quiz marks</th>

                    </tr>
                </thead>
                <tbody>
                    <?php

                    $Counter1=1;

                    foreach($markslist as $designation)
                    {
                    ?>

                    <tr class="gradeA odd" role="row">
                        <td class="sorting_1"><?php echo $Counter1++;?></td>
                        <td class="sorting_1"><?php echo $designation->name;?></td>
                        <td class="sorting_1"><?php echo $designation->rollno;?></td>
                        <td class="sorting_1"><?php echo $designation->marks; //use you column name for mark mere?></td>
                    </tr>
                    <?php
                    }
                    ?>
                </tbody>
            </table>
        </div>
    </div>
</div>

Answer 2

Plyl FY 始终保持 Sr Rerun bback。