Best Way to Implement Affiliate Link Tracking in CodeIgniter 4?

1) Clicks on each referral link
    Use CodeIgniter Events for tracking referrals, you may also need to use
    CodeIgniter's _remap to check the referral links.

2) Source of traffic (e.g., WhatsApp, Instagram, etc.)
    You can check what kind of app like WhatsApp is accessing your website in PHP
    by examining the User-Agent header of the HTTP request.

3) Basic analytics like IP address, timestamp, and referral ID
    This would need to be saved in the database.

What did you Try? What did you Get? What did you Expect?

Joined CodeIgniter Community 2009.  ( Skype: insitfx )