CodeIgniter - Page Redirection

Page Redirection

While  building  web  application,  we  often  need  to  redirect  the  user  from  one  page  to another  page.  CodeIgniter  makes  this  job  easy  for  us.  The  redirect()  function  is  used for this purpose.

The   first   argument   can   have   two   types   of   URI.   We   can   pass   full   site   URL   or   URI segments to the controller you want to direct.

The  second  optional  parameter  can  have  any  of  the  three  values  from  auto,  location  or refresh. The default is auto.

The  third  optional  parameter  is  only  available  with  location  redirects  and  it  allows  you  to send specific HTTP response code.

Example

Create  a  controller  called  Redirect_controller.php and save it in application/controller/Redirect_controller.php

<?php

class  Redirect_controller  extends  CI_Controller  {

public  function  index()

{

/*Load  the  URL  helper*/

$this->load->helper('url');

/*Redirect  the  user  to  some  site*/ redirect('http://www.websitename.com');

}

public  function  computer_graphics()

{

/*Load  the  URL  helper*/

$this->load->helper('url'); redirect('http://www.websitename.com/computer_graphics/index.htm');

}

public  function  version2()

{

/*Load  the  URL  helper*/

$this->load->helper('url');

/*Redirect the user to some internal controllerŨs method*/

redirect('redirect/computer_graphics');

}

}

?>

Change  the  routes.php  file  in  application/config/routes.php  to  add  route  for  the above controller and add the following line at the end of the file.

$route['redirect']  =  'Redirect_controller';

$route['redirect/version2']  =  'Redirect_controller/version2';

$route['redirect/computer_graphics']  =  'Redirect_controller/computer_graphics';

Type the following URL in the browser, to execute the example.

http://yoursite.com/index.php/redirect

The  above  URL  will  redirect  you  to  the  tutorialspoint.com  website  and  if  you  visit  the following    URL,    then    it    will    redirect    you    to    the    computer    graphics    tutorial    at tutorialspoint.com.

http://yoursite.com/index.php/redirect/computer_graphics