将多行插入数据库codeigniter中的表

Question

I am trying to insert multiple rows to my database using a single query. I saw lots of questions related to this but they dont work for me.

I was able to save the multiple rows but the values are all the same, its the last data that i inputted so i guess i missed something?

Here are the codes:

Controller

public function addgrade()
{
    $recordid = $this->input->post('recordid');
    $studentid = $this->input->post('studentid');
    $compid = $this->input->post('compid');
    $subcompid = $this->input->post('subcompid');
    $grade = $this->input->post('grade');
    $classid = $this->input->post('classid');


    foreach($this->UserModel->students() as $student):
        if ($student->classid==$classid) { //$classid==33
            $i=0;
            $data = array(
                    'recordid' =>$recordid,
                    'studentid' => $studentid,
                    'compid' => $compid,
                    'subcompid' =>$subcompid,
                    'grade' =>$grade
                );

            $this->Crud->addgrade($data);

        }
    endforeach;
    $this->session->set_flashdata('success', 'Successfully created!');
    redirect('instructor');
}

Model

public function addgrade($data)
{
    $this->db->insert('grade', $data);
}

View

<td>
   <strong>
       <input class="form-control inputScore" type="hidden" name="classid" value="<?php echo $classid;?>"></input>
       <input class="form-control inputScore" type="hidden" name="recordid" value="<?php echo $record->id;?>"></input>
       <input class="form-control inputScore" type="hidden" name="studentid" value="<?php echo $student->studentid;?>"></input>
       <input class="form-control inputScore" type="hidden" name="compid" value="<?php echo $subcomp->id;?>"></input>
       <input class="form-control inputScore" type="hidden" name="subcompid" value="<?php echo $subcomp->id;?>"></input>
       <input class="form-control inputScore" type="text" name="grade"></input>
   </strong></td>

All that gave me is this output on my database:

Answer 1

Did you try this instead? There's more detailed info about it here... Codeigniter - Append rows in view then add those rows to database table

$this->db->insert_batch('grade', $data);

Answer 2

在您的表单代码中，对于所有“名称”变量，例如 name="classid"，请务必在末尾添加 "[]"... name="classid[]"