Codeigniter implements URL redirection after user login verification

Codeigniter processes the URL jump after User login verification. It mainly involves the My_Controller.php page and the logon authentication module User. php page. The specific code is as follows:

My_Controller.php page:

Copy codeThe Code is as follows: class MY_Controller extends CI_Controller
{
Public function _ construct ()
{
Parent: :__ construct ();
/* Determine whether to log on and whether the current URL is auth/login */
If (! $ This-> tank_auth-> is_logged_in ()
& ($ This-> router-> fetch_class ()! = 'Auth' & $ this-> router-> fetch_method ()! = 'Login '))
{
$ Redirect = $ this-> uri-> uri_string ();

If ($ _ SERVER ['query _ string'])
{
$ Redirect. = '? '. $ _ SERVER ['query _ string'];
}
/* Go to the user Login page and specify the URL to jump to after Login */
Redirect ('auth/login? Redirect = '. $ redirect );
}
}
}

User. php page:

Copy codeThe Code is as follows: class User extends MY_Controller
{
Function login ()
{

If ($ this-> tank_auth-> is_logged_in () {// logged in
Redirect ('/');

} Else {
// Other codes here ......
/* Determine whether redirect information exists */
$ Data ['redirect'] = isset ($ _ GET ['redirect'])? $ _ GET ['redirect']: '/';

If ($ this-> form_validation-> run () {// validation OK
If ($ this-> tank_auth-> login (
$ This-> form_validation-> set_value ('login '),
$ This-> form_validation-> set_value ('Password '),
$ This-> form_validation-> set_value ('remember '),
$ Data ['login _ by_username '],
$ Data ['login _ by_email ']) {// success
Redirect ($ data ['redirect']);

} Else {
// Error handling
}
}
$ This-> load-> view ("login_form ")
}
}
/*
Note: In login_form, Note that the form address for submitting the form:
<? Php echo form_open (site_url ("/auth/login? Redirect = ". $ redirect);?>
*/
}

Note the following in login_form:

Copy codeThe Code is as follows: <? Php echo form_open (site_url ("/auth/login? Redirect = ". $ redirect);?>