Adds in Paypal Standard Payment gateway support for EVP Wallet System addon.
Provides access to Paypal IPN Debug and Paypal Sandbox for debugging purposes.
Paypal IPN Debug: Enabling will write PayPal IPN response in ipn.log file at /public_html/tmp/logs/ folder. Make sure to remove any log data from logs folder in a production server. As it may contain sensitive information.
Paypal Sandbox: This allows a developer to test a payment processing checkout using a sandbox paypal account without making any real purchase. More info.
To configure Paypal standard payment properly, adjust these settings in your Paypal account:
1. Visit website payment preference https://paypal.com/businessmanage/preferences/website
Enable both options as image. https://d.pr/i/KYWWNL
Auto return -> ON: https://yourdomain.com/members/success.php
Payment Data Transfer-> ON
2. Set IPN as explained before like this image : https://d.pr/i/vEC0as
Make sure Message Delivery is active. IPN URL is not recommended to be correct as proper IPN URL gets sent through a form submission by default through EVP Paypal Addons which overrides it. But if required. Then set direct IPN URL: https://yourdomain.com/lib/addons/paypal-standard-payment-gateway/ipn.php
3. Disable Review each payment before completing/confirming [If Enable]
