HI, I have extensive experience in the integration of payment gateway on the website. I have integrated almost all (below mentioned) popular payment gateways. I can do this for any website no matter whether it's built-in Core PHP/MVC Framework (CakePHP, CodeIgniter, YII, Laravel, etc.)/CMS (WordPress, Drupal, etc.). I put a "Pay" button on the checkout page when user will click on "Pay" button then it will redirect to respective payment gateway website and will redirect back to the website with "Success/Failed" transaction status. I will integrate one payment gateway in this Gig. Below mentioned is the list of some popular payment gateways which I have integrated:- ? Paypal ***Please contact me before placing an order***