Question

这是我的代码

 $this -> db -> select('*');
        $this -> db -> from('events');
        $this -> db -> where('user_id',$session_data['id']);


        $query = $this -> db -> get();

        $result = $query->result();

        if($result)
        {

            $events_array = array();
            foreach($result as $row)
            {
                $events_array = array(
                    'id' => $row->id,
                    'title' => $row->title,
                    'ev_img_name' => $row->ev_img_name,

                );

                $this->session->set_userdata('events',$events_array);
            }
            $session_data = $this->session->userdata('events');
            $id = $this->session->userdata('id');
            $data['id'] = $id;
            $data['id'] = $session_data['id'];
            $title = $this->session->userdata('title');
            $data['title'] = $title;
            $data['title'] = $session_data['title'];
            $ev_img_name = $this->session->userdata('ev_img_name');
            $data['ev_img_name'] = $ev_img_name;
            $data['ev_img_name'] = $session_data['ev_img_name'];

它只获取表的第一行，但我需要获得具有相同user_id的所有行。我怎样才能做到这一点。提前谢谢。

Answer 1

在foreach中，您将值重新分配给同一个数组。尝试使用

 $events_array = array();
 foreach($result as $row)
 {
      $events_array[] = array(
          'id' => $row->id,
          'title' => $row->title,
          'ev_img_name' => $row->ev_img_name,
      );

}
$this->session->set_userdata('events',$events_array);

这样，您将获得$events_array中返回结果的所有行。

现在在您的视图中，您可以执行此操作

<?php foreach($events_array as $event) { ?>
   <div class="event">
      Title: <?= $event['title'] ?>
      Image: <br>
      <img src="<?= $event['ev_img_name'] ?>">
   </div>
<?php } ?>

Answer 2

试用此代码，您可以直接从codeigniter sql查询获取数据格式的数据（字段数），然后直接将该数组设置为session，如下所示，

__keys__

获取codeigniter中id = $ id的数据库的所有行

2 个答案: