How to get previous page url in codeigniter?

Today, i will tech you how to redirect previous page url in codeigniter php. we may sometime require to redirect previous page after login then you can get previous page path by using codeigniter user_agent library, request array or using session.

here, i will show you both example to getting previous page url so, you can simply redirect on that page in codeigniter 3 application.

first we will see user_agent library using referrer() for getting previous page url.

Example 1:

$this->load->library('user_agent');
  
if ($this->agent->is_referral()){
    print_r($this->agent->referrer());
}

Example 2:

print_r($_SERVER['HTTP_REFERER']);

Example 3:

Controller method, using session:

$this->session->set_userdata('previous_url', current_url());

Getting in Controller method:

$previous_url = $this->session->userdata('previous_url');
  
print_r($previous_url);

I hope it can help you....