Question

我的结果显示

但我想要

MY控制器

if((int)$id) {
                $studentID = [];
                $comments = [];
                $this->data['set'] = $id;
                $schoolyearID = $this->session->userdata('defaultschoolyearID');
                $this->data['classes'] = $this->student_m->get_classes();
                $this->data['students'] = $this->student_m->get_order_by_student(array('classesID' => $id, 'schoolyearID' => $schoolyearID));
                foreach($this->data['students'] as $key => $val){
                    $studentID[] = $val->studentID; 
                }
                foreach ($studentID as $student) {
                        $comments[] = $this->sattendance_m->get_comment($id,$student);  
                }
                $this->data['comments'] = $comments;
$this->load->view('_layout_main', $this->data);

我的模态

function get_comment($id,$student) {
$this->db->select('*');
$this->db->where('classesID', $id);
$this->db->where_in('studentID', $student);
$this->db->order_by($this->_primary_key,"desc");
$this->db->limit(1);
$this->db->from($this->_table_name);
$query=$this->db->get();
return $query->result();
}

我的视图

 <?php foreach($students as $student) { ?>
                                                <tr>


                                                    <td data-title="<?=$this->lang->line('attendance_name')?>">
                                                        <?php echo $student->name; ?>
                                                    </td>
                                                    <td data-title="<?=$this->lang->line('attendance_roll')?>">
                                                        <?php echo $student->roll; ?>
                                                    </td>



<td data-title="<?=$this->lang->line('attendance_comment')?>">
<?php 
if(count($comments)) 
{
$attendanceID = [];
$student_ID = [];
$comment = [];
$classid = [];
  foreach ($comments as $key => $row) {
     foreach ($row as  $value) {
        $attendanceID [] = $value->attendanceID;
        $student_ID [] = $value->studentID;
        $classid [] = $value->classesID;
        //$comments [] = $value->comment;   
$key = array_search($student->studentID,$student_ID); //find same StudentID ids
$key2 = array_search($set,$classid); // find same classID

if($student_ID[$key] == $student->studentID && $set == $classid[$key2]){
        ?>
         <?php
           echo $value->comment; // Showing Comment where Both IDs same
         ?>
<?php }
     }
  }
}

?>
    </td>
                                                    <?php } ?>
                                               </tr>
                                            <?php  } ?>

我想要匹配学生ID＆amp; ClassID并显示相关的studentID注释，但在此代码中，当您看到所有注释重复相同时，可能是因为嵌套循环但不知道如何解决此问题以及我在哪里做错了。

Answer 1

使用student_id创建评论数组。所以重复和冲突没有完成。

在您的控制器中按照以下说明循环注释：

foreach ($studentID as $student) {
    $comments[$student] = $this->sattendance_m->get_comment($id,$student);  //<---add $student as index
 }

然后在视图中更改评论foreach，如下所示

foreach ($comment[$student->studentID] as $key => $row) {
     foreach ($row as  $value) {
        $attendanceID [] = $value->attendanceID;
        $student_ID [] = $value->studentID;
        $classid [] = $value->classesID;

         echo $value->comment; // Showing Comment 

      }
}

嵌套循环重复html td中的值

1 个答案: