session错误
本帖最后由 gandy 于 2013-11-6 18:26 编辑我用的是CI自带的SESSION；
在autoload.php里面加载$autoload['libraries'] = array('database', 'session');
在config设置了key
每次登录后5分钟，页面刷新就出现以下错误
A PHP Error was encountered
Severity: Warning
Message: Cannot modify header information - headers already sent by (output started at E:\PHP\APMServ-v5.2.6\APMServ5.2.6\www\htdocs\ci\application\controllers\admin\main.php:1)
Filename: libraries/Session.php
Line Number: 675
我的LOGIN控制器代码如下：
class Login extends CI_Controller {
function__construct()
{
parent::__construct();
}
public function index()
{
if ($this->session->userdata('username')) {
redirect('admin/main');
}
$this->load->library('form_validation'); // 使用CI的表单验证, 如下:
$this->form_validation->set_rules('username', '用户名', 'min_length|required');
$this->form_validation->set_rules('password', '密码', 'min_length|required');
if($this->form_validation->run() !== false){
// then validate password. Get from the Db.
$this->load->model('m_admin_login');
$res = $this->m_admin_login->check_user(
$this->input->post('username'),
$this->input->post('password')
);
if($res !== false){
//print_r($res);
$this->session->set_userdata('username',$this->input->post('username'));
//$this->session->set_userdata('userid',res['a_id']);
redirect('admin/main');
}
}
$this->load->view('admin/login');
}
public function out_login()
{
$this->session->unset_userdata('username');
//$this->session->sess_destroy();
redirect('admin/login');
}
}
控制器main，也就是登陆后的控制器代码如下：
class Main extends CI_Controller {
function__construct()
{
parent::__construct();
}
public function index()
{
//$this->load->library();
if ($this->session->userdata('username'))
{
$data['username']=$this->session->userdata('username');
$this->load->view('admin/main',$data);
}
else
{
$this->load->view('admin/login');
//redirect('admin/login');
}
}
}
大家帮我看看错在哪里啊
经过南宫大侠的远程帮助~·原来
原来
原来是BOM作怪
去除BOM就OK了 很像文件格式的问题
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