如何从外部文件访问Codeigniter会话

Question

我想从外部文件访问codeigniter会话，因此当我尝试从外部打印会话变量时，没有空数组

Answer 1

Codeigniter sessions are stored in a database table called ci_sessions unless you renamed it. Thus they are not accisible in the $_SESSION variable of PHP

heres what you do

1. get the session ID from the cookie. The cookie containing the session id will be called ci_session unless you changed the value of sess_cookie_name in the config.php file
2. from the database fetch the row from the ci_sessions table mentioned earlier and confirm that the clients ip_address and user_agent matches those in the row you just retrieved (this is for security reasons)
3. the actual session data will be held in the user_data column. You will have to parse this and obtain the key/value pairs. I suggest finding the relevant function for this in the sessions.php file in codeigniters system folder.