title: How to get all query string from Request class in laravel 5.0
body: <p>In my project I am using payment gateway and <a href="https://github.com/thephpleague/omnipay" rel="nofollow">Omnipay</a> want to know if its redirecting from "back to webiste button" or by clicking on cancel button.</p>
  
  <p>Its redirecting to a page called complete even when its redirected.</p>
  
  <p>I have checked the code and there I see:</p>
  
  <pre><code>$payerId = Request::query('PayerID');
  $token = Request::query('token');
  </code></pre>
  
  <p>So now I want to get all query value like payerID,etc. to check if something indicating weather its redirect or successfully completed.</p>
  
  <p>I know how to make payment by this gateway but any how in this project i am getting some trouble.</p>
  
  <p>Thanks.   </p>