how to pass a variable from one controller to the other in Code igniter

Question

I have just started learning Code Igniter .

I want to know how can I pass a variable from one controller(first_cont.php) to other controller (second_cont.php) ?

Answer 1

Stick to sessions where you can. But there's an alternative (for Codeigniter3) that I do not highly recommend. You can also pass the data through the url. You use the url helper and the url segment method in the receiving controller.

sending controller method

redirect("controller2/method/datastring", 'refresh');

receiving controller method

$this->load->helper('url');
$data = $this->uri->segment(3);

This should work for the default url structure. For a url: website.com/controller/method/data

To get controller $this->uri->segment(1) To get method $this->uri->segment(2)

The limitation of this technique is you can only send strings that are allowed in the url so you cannot use special characters (eg. %@$)