Member Avatar for Sujan Shrestha

here, home.php is one controller file and i want to redirect into another controller file login.php but this code is not working. if you have any idea then plz help me...

home.php

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Home extends CI_Controller{
    function __construct(){
        parent::__construct();
        $this->check_isvalidated();
    }

    public function index(){

        echo 'Congratulations, you are logged in.';

        echo "<br /><a href=''.base_url().'home/do_logout'>Logout</a>";
    }

    private function check_isvalidated(){
        if(! $this->session->userdata('validated')){
            redirect('login');
        }
    }

    public function do_logout(){
        $this->session->sess_destroy();
        redirect('login');
    }
}
?>
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  • 2 Replies
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  • Latest Post Latest Post by Adrian_5

Dani AI

Generated

the logic is fine; the usual culprit is that the URL helper (which provides redirect() and site_url()) or the Session library is not loaded. Autoload them so redirects work everywhere and you can read userdata() in the constructor:

// application/config/autoload.php
$autoload['helper']    = array('url');      // redirect(), site_url(), anchor()
$autoload['libraries'] = array('session');  // $this->session

Your logout link is also being concatenated inside a quoted string, so base_url() never runs. Build controller/method links with site_url() or, simpler, the anchor() helper:

// inside Home::index()
echo 'Congratulations, you are logged in.';
echo '<br />' . anchor('home/do_logout', 'Logout'); // generates the correct URL

A few gotchas to check if it still does not redirect:

  • Do not prefix with a leading slash unless you intend an absolute path from the domain root. redirect('login') uses site_url('login') and respects index_page, subfolders, and URL rewriting. Using redirect('/login') can break when the app is in a subdirectory.
  • Make sure no output (even a space/BOM) is sent before headers. Omit the closing ?> in PHP files and remove any whitespace before <?php. Header warnings in logs indicate this issue.
  • Avoid redirect loops: if your Login controller also redirects when already authenticated, guard it so Login does not call the same check as Home.

Good call by on enabling logs; set $config['log_threshold'] = 4 and inspect application/logs/ for header or routing errors. And +1 to : explicitly loading the URL helper in the controller also works, but autoloading keeps things consistent across requests.

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Member Avatar for cereal

Hi,

is the URL helper automatically loaded? By enabling the log in CI you should be able to get more information about the error, just check into application/logs/. Try also to prefix the redirect link with a slash, for example:

redirect('/login');
Member Avatar for Adrian_5

Before redirecting, try $this->load->helper('url');. Also, try to do a redirect like so redirect('login','refresh');

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