php 如何在 Codeigniter 中检查会话是否设置？
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How to Check either Session is Set or Not in Codeigniter?
提问by user3480644
I know how to create session in core PHP, and I have understand how to do this in codeigniter, but I am unable to understand how to check, if the session is set or not? I have tried to check this through View but it always give me the meesage Please Login.
我知道如何在核心 PHP 中创建会话，并且我已经了解如何在 codeigniter 中执行此操作，但是我无法理解如何检查会话是否已设置？我试图通过 View 检查这个，但它总是给我 meesage Please Login。
Kindly tell me how can I check whether the session is Set or not Set
请告诉我如何检查会话是否已设置
Controller
控制器
if ($user_type=='Student')
{
if ($LoginData= $this->loginmodel->studentLogin($username,$password))
{
foreach($LoginData as $UserId)
{
$currentId= $UserId->StudentId;
}
//[[session]]
$data['students_data']= $this->loginmodel->student_profile($currentId);
$this->session->userdata('$data');
$this->load->view('students',$data);
}
else
{
//$data['message']= array('Invalid Username or Password');
$this->load->view('Login');
echo "Invalid Username or Password";
}
}
elseif ($user_type=="Faculty")
{
if($data['faculty_data']=$this->loginmodel->faculty_admin($username, $password))
{
$this->session->userdata('$data');
$this->load->view('faculty');
}
else
{
$this->load->view('Login');
echo "Invalid Username or Password";
}
}
VIEW
看法
<?php
if (!$this->session->userdata('$data'))
{
echo "Please Login";
}
else
{
}
?>
<!DOCTYPE
回答by Sujit
Creating Session:
创建会话：
$newdata = array(
'username' => 'johndoe',
'email' => '[email protected]',
'logged_in' => TRUE
);
$this->session->set_userdata($newdata);
or
或者
$this->session->set_userdata('some_name', 'some_value');
But before that ensure that you have the session library included.
但在此之前，请确保包含会话库。
$this->load->library('session');
Get Session Data:
获取会话数据：
if($this->session->userdata('whatever_session_name_is')){
// do something when exist
}else{
// do something when doesn't exist
}
回答by ravi patel
回答by antelove
Using has_userdata
使用 has_userdata
if ($this->session->has_userdata('username')) {
return TRUE;
} else {
return FALSE;
}
