Codeigniter：如何在重定向中传递搜索词

Question

我使用PHP和MySQL用codeigniter做了一个简单的项目。 该项目使用户有能力通过添加新产品和更新每种产品的库存来管理其仓库。 现在，当用户搜索产品并更新库存值时，该应用程序将更新数据库并刷新页面并显示所有产品。 有没有一种方法可以传递他使用的搜索词，甚至可以更好地传递他在重定向中更改的产品。 非常感谢。

function prevazia($param1 = '', $param2 = '', $param3 = '')
    {
        if ($this->session->userdata('admin_login') != 1)
            redirect(base_url() . 'index.php?login');
        if ($param1 == 'edit') 
        {
            $data['type']    = $this->input->post('type');   
            $data['color']   = $this->input->post('color');
            $addition   = $this->input->post('addition');
            $data['stock']   = $this->input->post('stock') + $addition;
            $data['stock_alert']   = $this->input->post('stock_alert');
            //-----------------------------------------
            include('dbc.php');
            mysqli_query($conn,"SET character_set_results = 'utf8', character_set_client = 'utf8', character_set_connection = 'utf8', character_set_database = 'utf8', character_set_server = 'utf8'");
            $sql9 = "SELECT * FROM prevazia_log order by id desc LIMIT 1";          
            $result = mysqli_query($conn, $sql9);
            if ($result->num_rows > 0) 
            {
                while($row = $result->fetch_assoc()) 
                {
                    $last_id=$row['id']+1;
                }
            }
            date_default_timezone_set('Europe/Athens');
            //$result6 =  mysqli_query($conn, $sql);
            //$additionDate = DateTime::createFromFormat('d/m/Y H:i');
            //$myAdditionDate = $additionDate->format('Y-m-d H:i');
            $log['id']                  = $last_id;
            $log['user']                = $this->session->userdata('name');
            $log['create_timestamp']    = date("d-m-y  h:i:sa");
            $log['type']                = $this->input->post('type');
            $log['color']               = $this->input->post('color');
            $log['previous_stock']      = $this->input->post('stock');
            $log['addition']            = $this->input->post('addition');
            $log['new_stock']           = $this->input->post('stock') + $this->input->post('addition');
            //--------------------
            //$data['role']   = $this->input->post('role');
            $this->db->insert('prevazia_log', $log);
            $this->db->where('id', $param2);
            $this->db->update('prevazia', $data);
            // UPLOAD IMAGE FILE
            $this->session->set_flashdata('flash_message', translate('informations_updated'));
            redirect(base_url() . 'index.php?admin/prevazia', 'refresh');
        }
        if ($param1 == 'delete') 
        {
            $this->db->where('id', $param2);
            $this->db->delete('prevazia');
            $this->session->set_flashdata('flash_message', translate('data_deleted'));
            redirect(base_url() . 'index.php?admin/prevazia', 'refresh');
        }
        $page_data['page_name']  = 'prevazia';
        $page_data['page_title'] = 'Πρεβάζια';
        $page_data['prevazia']  = $this->db->get_where('prevazia', array('active'=> $GLOBALS['flag']))->result_array();
        $this->load->view('backend/index', $page_data);
    }

编辑：最好是如果我可以传递$ data ['type']和$ data ['color']，那么当它重定向时，会将这些值传递给搜索框。

Answer 1

如果您使用带方法post的表单提交，则应通过视图返回搜索参数

$data['search_param'] =  $post['search_param'];
$this->load->view('view_page', $data);

<input name="search_param"  value="<?php echo !empty($search_param) ? $search_param : ''?>">