How does thinkphp pass values between different functions of different Action classes?

How does thinkphp pass values between different functions of different Action classes? I use ThinkPHP to log on to the page. log on to the page and submit the form to action = & quot ;__ APP _/Index/login_do & quot;. then, I wrote the login_do function in the IndexAction class: how does publi thinkphp pass values between different functions of different Action classes?
I used ThinkPHP to log on to the page.
On the login page, submit the form to action = "_ APP _/Index/login_do". then, I wrote the login_do function in the IndexAction class:
Public function login_do ()
{
If ($ _ SESSION ['verify ']! = Md5 ($ _ POST ['userauthcode'])
{
$ This-> error ('verification code error! ');
}
$ Username = $ _ POST ['username'];
$ Password = $ _ POST ['password'];
$ Password = md5 ($ password );

$ User = M ('user ');
$ Res = $ user-> where ("user_name = '$ username' & password =' $ password'")-> find ();
If ($ res)
{
Redirect ('../Home/home', 1, "logon successful! The page is Redirecting ...");
}
Else
{
$ This-> error ('logon failed! ');
}
}




The following is the HomeAction class:
Class HomeAction extends Action
{
Public function home ()
{
$ This-> display ();
}
}




.../Tpl/Home/home.html is the Home page.





Now the question is: I want to display the user name on the Main Page. how can I transfer the user name value to home.html? hope you can teach me with a high finger and give me a prompt. thank you!

------ Solution --------------------
Store the session during login and use $ name = Session: get ('name') in the home controller to get the user name.

Then $ this-> assign ('name', $ name );
The final output template is on the template page {$ name}

Speed score
------ Solution --------------------
Follow the description of #1 and implement it in the corresponding _ URL _/top method.