[英]Codeigniter - PHP something wrong with Session
我正在網上沖浪,找到了官方頁面:
帶有添加自定義會話數據段落
https://www.codeigniter.com/user_guide/libraries/sessions.html
我嘗試實現該代碼以進行挖掘,但仍然無法正常工作:
public function login_validation(){
$data = new stdClass();
$this->load->database(); // load database
$this->load->library('form_validation');
$this->load->helper('url');
$this->load->library('session');
$this->form_validation->set_rules('email', 'email', 'required|trim|callback_validate_credentials');
$this->form_validation->set_rules('password', 'password', 'required|trim', array(
'required' => 'Password field is empty'));
$this->load->model("model_users");
$email = $this->input->post('email');
$user_id = $this->model_users->get_user_id($email);
$user = $this->model_users->get_user($user_id);
if ($this->form_validation->run()){
$newdata = array(
'username' => 'johndoe',
'email' => 'johndoe@some-site.com',
'logged_in' => TRUE
);
// $_SESSION['user_id'] = (bool)true;
// $_SESSION['email'] = $this->input->post('email');
// $_SESSION['logged_in'] = (bool)true;
// $_SESSION['username'] = (string)$user->priv;
$this->session->set_userdata($newdata);
$this->members();
} else{
$this->login();
}
}
我在此行收到此錯誤- <?php echo $_SESSION['username']; ?>
<?php echo $_SESSION['username']; ?>
:
A PHP Error was encountered
Severity: Notice
Message: Undefined index: username
Filename: views/catalog.php
Line Number: 19
Backtrace:
我沒有看到任何錯誤,而且我現在真的很着急,因為沒有任何反應。 很抱歉提出問題的方式不好。 如果您需要額外的代碼行,請說我將其粘貼在pastebin.com中
設置新會話
$newdata = array(
'username' => 'johndoe',
'email' => 'johndoe@some-site.com',
'logged_in' => TRUE
);
$this->session->set_userdata($newdata); # setting session data
檢索會話
$username = $this->session->userdata('username');
echo $username;
視野中
echo $this->session->userdata('username');
注意:
如果要傳遞會話數據以查看, 可以將其與
$data[]
綁定,或者在view中可以直接調用它 。
由於PHP本機會話未在CI:2中實現,因此您不能在codeigniter 2中使用$ _SESSION,而可以使用
$this->session->set_userdata('key','data');
//to fetch this session you can do
$this->session->userdata('key');
但是由於某種原因,您需要實現PHP本機會話,因此可以將其添加為庫Check庫(此處)
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