从 1.7.3 升级到 2.0.0 出现的session错误

veicn · 发表于 2012-12-6 16:46:29

本帖最后由 veicn 于 2012-12-6 19:57 编辑

程序从CodeIgniter1.7.3 升级到2.0.0 后出现这样的错误

A PHP Error was encounteredSeverity: Notice
Message: Undefined property: Panel:: $data
Filename: core/Model.php
Line Number: 50

A PHP Error was encounteredSeverity: Notice
Message: Indirect modification of overloaded property bl_userlib:: $data has no effect
Filename: models/bl_userlib.php
Line Number: 5

在bl_userlib.php 文件中第5行是这样的

class Bl_userlib extends CI_Model {
      function __construct() {
            parent::__construct();
            $this->data ['cookie'] = get_cookie ( md5 ( 'User__cms' ) );
            $this->data ['session'] = $this->session->userdata ( md5 ( 'User__cms' ) );
      }

在Panel.php 是这样的

class Panel extends CI_Controller {
      function __construct() {
            parent::__construct();
            $this->load->helper ( 'cookie' );
            $this->load->library ( 'session' );
            $this->load->library ( array ('helper', 'form_validation' ) );
            $this->form_validation->set_error_delimiters ( '<p class="error">', '</p>' );
            $this->load->model ( 'bl_userlib' );
      }
这是怎么回事？请教~

Hex · 发表于 2012-12-6 18:33:26

$this->data 从哪里赋值的啊？

veicn · 发表于 2012-12-6 19:04:27

本帖最后由 veicn 于 2012-12-6 19:07 编辑

Hex 发表于 2012-12-6 18:33
$this->data 从哪里赋值的啊？

在这里赋的值，调试的时候发现get_cookie ( md5 ( 'User__cms' ) ); 和 $this->session->userdata ( md5 ( 'User__cms' ) ) 取到的值都是 flase，赋值的时候都赋上了 set_cookie ( md5 ( 'User__cms' ), md5 ( $params ) );和 $this->session->set_userdata ( md5 ( 'User__cms' ), md5 ( $params ) );  取得时候都是空的。
<?php if (! defined ( 'BASEPATH' )) exit ( 'No direct script access allowed' );
class Bl_userlib extends CI_Model {
      function __construct() {
            parent::__construct();
            $this->data ['cookie'] = get_cookie ( md5 ( 'User__cms' ) );
            $this->data ['session'] = $this->session->userdata ( md5 ( 'User__cms' ) );
      }
      function result($param = false) {
            if ($param === false) {
                     if (! empty ( $this->data ['cookie'] ) && ! empty ( $this->data ['session'] )) {
                              if ($this->data ['cookie'] == $this->data ['session']) {
                                    echo '<script language="javascript">top.location="' . site_url ( 'panel/index' ) . '";</script>';
                              }
                     }
            } else {
                     if (empty ( $this->data ['cookie'] ) && empty ( $this->data ['session'] )) {
                              echo '<script language="javascript">top.location="' . site_url ( 'panel/login' ) . '";</script>';
                     }
            }
      }
      function seting($param = false, $params = '') {
            if ($param === false) {
                     set_cookie ( md5 ( 'User__cms' ), md5 ( $params ) );
                     $this->session->set_userdata ( md5 ( 'User__cms' ), md5 ( $params ) );
            } else {
                     delete_cookie ( md5 ( 'User__cms' ) );
                     $this->session->unset_userdata ( md5 ( 'User__cms' ) );
            }
      }
}
?>

Hex · 发表于 2012-12-6 19:07:01

报错行是哪个？

veicn · 发表于 2012-12-6 19:51:35

Hex 发表于 2012-12-6 19:07
报错行是哪个？

bl_userlib.php 中的这两行 $this->data ['cookie'] = get_cookie ( md5 ( 'User__cms' ) );
$this->data ['session'] = $this->session->userdata ( md5 ( 'User__cms' ) );
谢谢 Hex~

A PHP Error was encounteredSeverity: Notice
Message: Undefined property: Panel:

data
Filename: core/Model.php
Line Number: 50

A PHP Error was encounteredSeverity: Notice
Message: Indirect modification of overloaded property Bl_userlib:

data has no effect
Filename: models/bl_userlib.php
Line Number: 5

A PHP Error was encounteredSeverity: Notice
Message: Undefined property: Panel:

data
Filename: core/Model.php
Line Number: 50

A PHP Error was encounteredSeverity: Notice
Message: Indirect modification of overloaded property Bl_userlib:

data has no effect
Filename: models/bl_userlib.php
Line Number: 6

A PHP Error was encounteredSeverity: Notice
Message: Undefined property: Panel:

data
Filename: core/Model.php
Line Number: 50

veicn · 发表于 2012-12-6 19:54:08

本帖最后由 veicn 于 2012-12-6 19:58 编辑

Hex 发表于 2012-12-6 19:07
报错行是哪个？

这两行~
$this->data ['cookie'] = get_cookie ( md5 ( 'User__cms' ) );
$this->data ['session'] = $this->session->userdata ( md5 ( 'User__cms' ) );

A PHP Error was encountered
Severity: Notice
Message: Undefined property: Pane l:: $ data
Filename: core/Model.php

Line Number: 50
A PHP Error was encountered
Severity: Notice
Message: Indirect modification of overloaded property Bl_userlib :: $ data has no effect
Filename: models/bl_userlib.php

Line Number: 5
A PHP Error was encountered
Severity: Notice
Message: Undefined property: Panel :: $ data
Filename: core/Model.php
Line Number: 50

A PHP Error was encountered
Severity: Notice
Message: Indirect modification of overloaded property Bl_userlib :: $ data has no effect
Filename: models/bl_userlib.php
Line Number: 6

A PHP Error was encountered
Severity: Notice
Message: Undefined property: Panel :: $ data
Filename: core/Model.php
Line Number: 50

谢谢Hex~

Hex · 发表于 2012-12-7 09:48:43

先执行 $this->data = array(); 试试

veicn · 发表于 2012-12-7 10:33:31

Hex 发表于 2012-12-7 09:48
先执行 $this->data = array(); 试试

问题解决，谢谢帮助~

yunnysunny · 发表于 2012-12-7 11:31:55

CI_Model 类中有data这个成员属性吗？根本就没有，而且你在Bl_userlib 中竟然是用了$this->data来引用这个成员属性。我实在想不出来不出错的理由。

Hex · 发表于 2012-12-7 14:05:41

veicn 发表于 2012-12-7 10:33
问题解决，谢谢帮助~

变量先定义后使用是个好习惯。呵呵

		自动登录	找回密码
密码			入住 CI 中国社区

[版本 2.x] 从 1.7.3 升级到 2.0.0 出现的session错误