会话变量的值更改为 'js' 或 'css' Codeigniter答案

【问题标题】：The value of session variable changed to 'js' or 'css' Codeigniter会话变量的值更改为 'js' 或 'css' Codeigniter
【发布时间】：2016-10-04 10:51:31
【问题描述】：

我有一个名为“项目”的控制器，它通过视图和每个项目链接旁边显示保存在 db 中的所有项目以查看其详细信息，该链接将项目 ID 发送到控制器以选择单击的项目并显示其详细信息。我需要将项目 ID 存储在会话变量中，以便在我的所有进程中使用它。我的问题是：当我调用项目 id 会话变量时 -> 在第一次调用时它正确显示它 -> 但在第二次调用它时显示“js”或“css” 我不知道我的项目 id 和 'js' 或 'css' 之间的关系是什么？？为什么值变了？？？

这是我的代码：

admin_projects_view_view.php

<br />
<br />
<!--Page Container Start Here-->
<section class="main-container">
    <div class="container-fluid">
        <div class="row">
            <div class="col-md-12">
                <div class="widget-wrap">
                    <div class="widget-header block-header margin-bottom-0 clearfix">
                        <div class="pull-left">
                            <h3 style="font-size:25px">Projects</h3>
                            <p></p>
                        </div>
                    </div>

                    <div class="widget-container">
                        <div class="widget-content">
                            <!-------------------------- Projects---------------------------->
                            <div class="row">
                                <div class="col-md-12">
                                    <a href="#" class="button round" data-reveal-id="newproject">Add New</a>
                                    <table id="headerTable" class="tablee">
                                        <tr>
                                            <td class="event-td td-head text-center">ID</td>
                                            <td class="event-td td-head text-center">Name</td>
                                            <td class="event-td td-head text-center">Location</td>
                                            <td class="event-td td-head text-center">Description</td>
                                            <td class="event-td td-head text-center">Quality</td>
                                            <td class="event-td td-head text-center">Payment Method</td>
                                            <td class="event-td td-head text-center">Project Map</td>
                                            <td class="event-td td-head text-center">Action</td>
                                        </tr>

                                        <?php
                                                foreach($view_projects as $row)
                                                {
                                                ?>
                                                    <tr>
                                                    <td class="event-td text-center"><?php echo $row->id ?></td>
                                                    <td class="event-td text-center"><?php echo $row->pname?></td>
                                                    <td class="event-td text-center"><?php echo $row->location ?></td>
                                                    <td class="event-td text-center"><?php echo $row->description ?></td>
                                                    <td class="event-td text-center"><?php echo $row->stars ?></td>
                                                    <td class="event-td text-center"><?php echo $row->payment_methods ?></td>
                                                    <td class="event-td text-center"><?php echo $row->project_map ?></td>
                                                    <td class="event-td text-center">
                                                    <a href="<?php echo site_url();?>/projects/view_project_details/<?php echo $row->id;?>">View Details </a>

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


            <div id="newproject" class="reveal-modal" data-reveal aria-labelledby="modalTitle" aria-hidden="true" role="dialog">
              <h2 id="modalTitle">Add New Project</h2>
                <form action="<?php echo site_url('projects/add_new'); ?>" enctype="multipart/form-data" method="post" data-abide>

                        <label>Project Name: <small>required</small>
                        <input type="text" name="pname" placeholder="Project Name" >
                        </label>

                        <label>Location: <small>required</small>
                        <input type="text" name="location" placeholder="Project Location" >
                        </label>

                        <label>Description: <small>required</small>
                        <textarea name="description" placeholder="Project Description"  /></textarea>
                        </label>

                        <label>Quality: <small>required</small>
                        <input type="text" name="stars" placeholder="Project Quality" >
                        </label>

                        <label>Payment Method: <small>required</small>
                        <input type="text" name="payment_methods" placeholder="Payment Method" >
                        </label>

                        <label>Map: <small>required</small>
                        <textarea name="project_map" placeholder="Project Map"  /></textarea>
                        </label>

                    <input type="submit" value="Save" name="submit" class="button round" />
                </form>
              <a class="close-reveal-modal" aria-label="Close">&#215;</a>
            </div>

项目控制器

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Projects extends CI_Controller
{
    public function __construct()
    {
        parent::__construct();
        $this->load->helper("session");
        $this->load->helper("url");
        $this->load->model('projects_model');
        $this->load->helper('cookie');
    }   


    public function index()
    {
        $this->load->model('projects_model');
        $data['view_projects'] =  $this->projects_model->view_projects();

        $this->load->view('admin_header_view');
        $this->load->view("admin_menu_view");
        $this->load->view("admin_projects_view_view", $data);
        $this->load->view('admin_footer_view');
    }

    public function view_project_details($id)
    {

        $sessdata=array(
            'project_id'=>$id
        );
        $this->session->set_userdata($sessdata);    

        $data['view_projects_services'] =  $this->projects_model->view_projects_services($id);
        $data['view_projects_spaces'] =  $this->projects_model->view_projects_spaces($id);
        $data['view_projects_prices'] =  $this->projects_model->view_projects_prices($id);
        $data['view_projects_photos'] =  $this->projects_model->view_projects_photos($id);
        $data['view_projects_videos'] =  $this->projects_model->view_projects_videos($id);
        $data['view_projects_status'] =  $this->projects_model->view_projects_status($id);


        $this->load->view('admin_header_view');
        $this->load->view("admin_menu_view");
        $this->load->view("admin_projects_details_view", $data);
        $this->load->view('admin_footer_view');
    }

    public function view_project_details_session()
    {
        $id = $this->session->userdata('project_id');
        //$data['view_one_project'] =  $this->projects_model->view_one_project_session($id);
        $data['view_projects_services'] =  $this->projects_model->view_projects_services($id);
        $data['view_projects_spaces'] =  $this->projects_model->view_projects_spaces($id);
        $data['view_projects_prices'] =  $this->projects_model->view_projects_prices($id);
        $data['view_projects_photos'] =  $this->projects_model->view_projects_photos($id);
        $data['view_projects_videos'] =  $this->projects_model->view_projects_videos($id);
        $data['view_projects_status'] =  $this->projects_model->view_projects_status($id);

        $this->load->view('admin_header_view');
        $this->load->view("admin_menu_view");
        $this->load->view("admin_projects_details_view", $data);
        $this->load->view('admin_footer_view');
    }

    //////////////////////////////////// Projects ////////////////////////////////////////////
    public function add_new_project()
    {

            $data= array(
                        'pname' => $this->input->post('pname'),
                        'location' => $this->input->post('location'),
                        'description' => $this->input->post('description'),
                        'stars' => $this->input->post('stars'),
                        'payment_methods' => $this->input->post('payment_methods'),
                        'project_map' => $this->input->post('project_map')
                    );
            $this->db->insert('projects',$data);

            redirect('projects');

    }

    public function edit_project($id)
    {
        $this->load->model('projects_model');
        $data['one_project'] =  $this->projects_model->view_one_project($id);

        $this->load->view('admin_header_view');
        $this->load->view("admin_menu_view");
        $this->load->view("admin_projects_edit_view", $data);
        $this->load->view('admin_footer_view');
    }

    public function save_project()
    {
        $project_id = $this->input->post('project_id');
        $data= array(
                    'pname' => $this->input->post('pname'),
                    'location' => $this->input->post('location'),
                    'description' => $this->input->post('description'),
                    'stars' => $this->input->post('stars'),
                    'payment_methods' => $this->input->post('payment_methods'),
                    'project_map' => $this->input->post('project_map')
                );
        $this->db->where('id',$project_id);
        $this->db->update('projects',$data);

        redirect('projects');
    }

    public function delete_project($id)
    {
        $this->db->where('id',$id);
        $this->db->delete('projects');

        redirect('projects');

    }
}

projects_model.php

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class projects_model extends CI_Model{

    public function view_projects()
    {
        $query=$this->db->get('projects');
        return $query->result();
    } 

    public function view_one_project($id)
    {
        $this->db->where('id',$id);
        $query=$this->db->get('projects');
        return $query->row();
    }
}

打印会话变量值如：

<? echo $this->session->userdata('project_id');?>

admin_footer_view.php

<!--Footer Start Here -->
<footer class="footer-container">
    <div class="container-fluid">
        <div class="row">
            <div class="col-md-6 col-sm-6">
                <div class="footer-left">
                    <span>© 2016 <a href="http://example.com"></a></span>
                </div>
            </div>
            <div class="col-md-6 col-sm-6">
                <div class="footer-right">
                    <span class="footer-meta">Designed by <a href="#"></a></span>
                </div>
            </div>
        </div>
    </div>
</footer>
<!--Footer End Here -->
</section>
<!--Page Container End Here-->
<!--Rightbar Start Here--><!--Rightbar End Here-->
<script src="<?php echo base_url();?>/js/lib/jquery.js"></script>
<script src="<?php echo base_url();?>/js/lib/jquery-migrate.js"></script>
<script src="<?php echo base_url();?>/js/lib/bootstrap.js"></script>
<script src="<?php echo base_url();?>/js/lib/jquery.ui.js"></script>
<script src="<?php echo base_url();?>/js/lib/jRespond.js"></script>
<script src="<?php echo base_url();?>/js/lib/nav.accordion.js"></script>
<script src="<?php echo base_url();?>/js/lib/hover.intent.js"></script>
<script src="<?php echo base_url();?>/js/lib/hammerjs.js"></script>
<script src="<?php echo base_url();?>/js/lib/jquery.hammer.js"></script>
<script src="<?php echo base_url();?>/js/lib/jquery.fitvids.js"></script>
<script src="<?php echo base_url();?>/js/lib/scrollup.js"></script>
<script src="<?php echo base_url();?>/js/lib/smoothscroll.js"></script>
<script src="<?php echo base_url();?>/js/lib/jquery.slimscroll.js"></script>
<script src="<?php echo base_url();?>/js/lib/jquery.syntaxhighlighter.js"></script>
<script src="<?php echo base_url();?>/js/lib/velocity.js"></script>
<script src="<?php echo base_url();?>/js/lib/jquery-jvectormap.js"></script>
<script src="<?php echo base_url();?>/js/lib/jquery-jvectormap-world-mill.js"></script>
<script src="<?php echo base_url();?>/js/lib/jquery-jvectormap-us-aea.js"></script>
<script src="<?php echo base_url();?>/js/lib/smart-resize.js"></script>
<!--iCheck-->
<script src="<?php echo base_url();?>/js/lib/icheck.js"></script>
<script src="<?php echo base_url();?>/js/lib/jquery.switch.button.js"></script>
<!--CHARTS-->
<script src="<?php echo base_url();?>/js/lib/chart/sparkline/jquery.sparkline.js"></script>
<script src="<?php echo base_url();?>/js/lib/chart/easypie/jquery.easypiechart.min.js"></script>
<script src="<?php echo base_url();?>/js/lib/chart/flot/excanvas.min.js"></script>
<script src="<?php echo base_url();?>/js/lib/chart/flot/jquery.flot.min.js"></script>
<script src="<?php echo base_url();?>/js/lib/chart/flot/curvedLines.js"></script>
<script src="<?php echo base_url();?>/js/lib/chart/flot/jquery.flot.time.min.js"></script>
<script src="<?php echo base_url();?>/js/lib/chart/flot/jquery.flot.stack.min.js"></script>
<script src="<?php echo base_url();?>/js/lib/chart/flot/jquery.flot.axislabels.js"></script>
<script src="<?php echo base_url();?>/js/lib/chart/flot/jquery.flot.resize.min.js"></script>
<script src="<?php echo base_url();?>/js/lib/chart/flot/jquery.flot.tooltip.min.js"></script>
<script src="<?php echo base_url();?>/js/lib/chart/flot/jquery.flot.spline.js"></script>
<script src="<?php echo base_url();?>/js/lib/chart/flot/jquery.flot.pie.min.js"></script>

<!--Forms-->
<script src="<?php echo base_url();?>/js/lib/jquery.maskedinput.js"></script>
<script src="<?php echo base_url();?>/js/lib/jquery.validate.js"></script>
<script src="<?php echo base_url();?>/js/lib/jquery.form.js"></script>
<script src="<?php echo base_url();?>/js/lib/j-forms.js"></script>
<script src="<?php echo base_url();?>/js/lib/jquery.loadmask.js"></script>
<script src="<?php echo base_url();?>/js/lib/vmap.init.js"></script>
<script src="<?php echo base_url();?>/js/lib/theme-switcher.js"></script>
<script src="<?php echo base_url();?>/js/apps.js"></script>


<script src="<?php echo base_url();?>/js/foundation/foundation.js"></script>
<script src="<?php echo base_url();?>/js/foundation/foundation.reveal.js"></script>
<script src="<?php echo base_url();?>/js/foundation/foundation.abide.js"></script>
<script src="<?php echo base_url();?>/js/foundation/foundation.offcanvas.js"></script>
<script src="<?php echo base_url();?>/js/foundation/foundation.topbar.js"></script>
<script src="<?php echo base_url();?>/js/foundation/foundation.tooltip.js"></script>
<script>
$(document).foundation();
</script>

</body>
</html>

有什么建议

【问题讨论】：

您发布的代码中没有任何内容可以解释这种行为。问题可能出在其他未显示的代码中。
理想情况下，SO 要求您只发布相关代码 - 否则就是 TL；DR。尝试在您的代码中找到您设置或覆盖会话变量的场合并发布，而不是所有内容。
$row->id 是否可能包含 css 或 js 值？你能检查一下projects 表吗？
不幸的是 id 字段仅包含 1 和 2，我检查了所有表格，但没有找到这两个字符串

标签： php codeigniter session

【解决方案1】：

您正在设置会话变量名称：'project_id'

但在“view_project_details_session”方法中，您正在尝试获取“pid” 变量名不同。

【讨论】：

是的，我知道并将其更正为“project_id”，但问题仍然存在
在 view_project_details 方法 "admin_footer_view" 中打印会话变量 "project_id" 的值，可能在方法执行结束时会话变量被覆盖。
echo $this->session->userdata('project_id');?> 在 admin_footer_view.php 中添加这个，你得到了什么？
我得到了 'js' 字符串，当我选择项目时它变成了 '1'，后来又变成了 'js'
$data['view_projects_services'] = $this->projects_model->view_projects_services($id); $data['view_projects_spaces'] = $this->projects_model->view_projects_spaces($id); $data['view_projects_prices'] = $this->projects_model->view_projects_prices($id); $data['view_projects_photos'] = $this->projects_model->view_projects_photos($id); $data['view_projects_videos'] = $this->projects_model->view_projects_videos($id); $data['view_projects_status'] = $this->projects_model->view_projects_status($id);检查这些方法，其中之一是更新会话变量