php 在 CodeIgniter 中设置 Session_id
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Setting Session_id in CodeIgniter
提问by Roman
In standard PHP i can set the session ID by following:
在标准 PHP 中，我可以通过以下方式设置会话 ID：
$my_session_id = $_GET['session_id']; //gets the session ID successfully
session_id($my_session_id); //sets the session with my session_id
session_start(); //starts session.
How can I do same with the CodeIgniter? I am trying following:
我如何使用 CodeIgniter 做同样的事情？我正在尝试以下操作：
$my_session_id = $_GET['session_id']; //gets the session ID successfully
$this->session->userdata('session_id', $my_session_id); //it won't set the session with my id.
print_r($this->session->userdata);
Am i making some mistake? Please help me as I have wasted several hours in this problem. If there is some issue with CodeIgniter Session class, can I use the standard PHP code to start session? I have tried to place the standard code in CodeIgniter as well, but it still does not set the session_id. I have also set $config['sess_match_useragent'] = FALSE;
我犯了一些错误吗？请帮助我，因为我在这个问题上浪费了几个小时。如果 CodeIgniter Session 类有问题，我可以使用标准的 PHP 代码来启动会话吗？我也尝试将标准代码放在 CodeIgniter 中，但它仍然没有设置 session_id。我也设置了$config['sess_match_useragent'] = FALSE;
采纳答案by cwallenpoole
This is a hack I just suggested on another question. Place this in the __constructof MY_Session(untested and will not work with encryption)
这是我刚刚在另一个问题上建议的一个技巧。将其放在__constructof MY_Session（未经测试且不适用于加密）
public function __construct()
{
if( isset( $_GET['session_id'] ) )
$_COOKIE[ $this->sess_cookie_name ] = $_GET['session_id'];
// Session now looks up $_COOKIE[ 'session_id' ] to get the session_id
parent::__construct()
}
回答by Eddie
You shouldn't need to do this, codeigniter does it all for you.
您不需要这样做，codeigniter 会为您完成这一切。
If you wish to get the session id you can do so by calling:
如果您想获取会话 ID，可以通过调用：
$session_id = $this->session->userdata('session_id');
However you can work around it: ( Note this post is 3 years old and I'm unsure if it's still necessary )
但是你可以解决它：（注意这篇文章已经 3 年了，我不确定它是否仍然有必要）
回答by DonSeba
use this for setting session_id in codeigniter:
使用它在 codeigniter 中设置 session_id：
$this->session->set_userdata( array('session_id', $your_session_id) );
and
和
$session_id = $this->session->userdata('session_id');
for reading it out again.
再读一遍。
回答by IOInterrupt
You should always start your session before modifying any session variables.
在修改任何会话变量之前，您应该始终启动会话。
I believe to start the CodeIgniter session you can do the following;
我相信要启动 CodeIgniter 会话，您可以执行以下操作；
$this->load->library('session');
$my_session_id = $_GET['session_id']; //gets the session ID successfully
$this->session->userdata('session_id', $my_session_id); //it won't set the session with my id.
print_r($this->session->userdata);
