Handling question mark in url in codeigniter

Question

I am using a payment method which on success returns a url like mysite/payment/sucess?auth=SDX53641sSDFSDF, but since i am using codeigniter, question marks in url are not working for me. I tried routing but it didnt work. As a final resort i created a pre system hook and unset the GET part from the url for with i had to set

$config["uri_protocol"] = "REQUEST_URI";

It worked that way but all other links in my site were not working as intended, tried changing the uri_protocol but could not make it work by any means. So basically my problem is handling the ?auth=SDFSEFSDFXsdf5345sdf part in my url, whenever the paypment method redirects to my site with the url mentioned above, it gets redirected to homepage instead of the function inside controller. How can i handle this, i'm using codeIgniter 1.7 version, and couldnt find any way. Please suggest some solution.

Answer 1

I think I would extend the core URI class, by creating new file at application/libraries/MY_URI.php which will extend the CI_URI class, then copy the _fetch_uri_string method and here you can add your logic if the $_SERVER['QUERY_STRING'] is present:

class MY_URI extends CI_URI
{
    function __construct()
    {
        parent::CI_URI();
    }

    //Whatever this method returns the router class is using to map controller and action accordingly.
    function _fetch_uri_string()
    {
        if(isset($_SERVER['QUERY_STRING']) AND !empty($_GET['auth']))
        {
            //Do your logic here, For example you can do something like if you are using REQUEST_URI
            $this->uri_string = 'payment/success/'.$_GET['auth'];
            return;
            //You will set the uri_string to controller/action/param the CI way and process further
        }

        //Here goes the rest of the method that you copied
    }
}

Also please NOTE that you must do security check of your URL and I hope this works for you, otherwise you can try extending the CI_Router class or other methods (experiment little bit with few methods, though the _set_routing is important). These 2 classes are responsible for the intercepted urls and mapping them to controller/action/params in CI.

Answer 2

I believe this thread holds the answer.
Basically add

$config['enable_query_strings'] = TRUE;

to your config.php

Answer 3

hope this will help you ! no need to change htaccess,just change your code.

redirect(base_url()."controller_name/function_name");