用到的基本东西：

1.修改配置文件

config.php

$config['encryption_key']

2.加载session类

$this->load->library('session');

3.创建session

$this->session->set_userdata($array);

4.查看session

$this->session->userdata('session名');

5.删除session

$this->session->unset_userdata('session名');

例子：

 

views/login.php

     
      
用户登录页面
     
     
      
       
        
用户名
        
        
密码
        
        
       
      
     

 models/test_m.php

     load->database();	}		function user_select($uname)	{		$this->db->where('uname',$uname);		$this->db->select('*');		$query=$this->db->get('user');		//var_dump($query->result());die;		return $query->result();	}}?>

 

 controllers/login.php

     load->view("login");}function checklogin()	{$this->load->model("test_m");$user=$this->test_m->user_select($_POST['uname']);if($user)		{if($user[0]->upass==$_POST['upass'])			{echo "密码正确";$this->load->library('session');$arr=array('uid'=>$user[0]->uid);$this->session->set_userdata($arr);echo $this->session->userdata('uid');}else			{echo "密码错误";}}else		{echo "用户不存在";}}function checksession()	{$this->load->library('session');if($this->session->userdata('uid'))		{echo "已经登录";}else		{echo "没登录";}}function logout()	{	$this->load->library('session');$this->session->unset_userdata('uid');}}?>

 

哎，代码乱的无法直视啊

=>array数组的键和值

->对象的成员