veicn 发表于 2012-12-6 16:46:29

从 1.7.3 升级到 2.0.0 出现的session错误

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 static/image/common/back.gif
$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 static/image/common/back.gif
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 static/image/common/back.gif
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 static/image/common/back.gif
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 static/image/common/back.gif
问题解决，谢谢帮助~

变量先定义后使用是个好习惯。呵呵
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