paypal

Dynamic Paypal button encryption

What you need to do is fairly complex, first, the intro, paypal encrypted buttons have the following layout: <form action=”https://www.paypal.com/cgi-bin/webscr” method=”post”> <input type=”hidden” name=”cmd” value=”_s-xclick”> <input type=”hidden” name=”encrypted” value=”—–BEGIN PKCS7—–MIIIEQYJKo…Encrypted stuff…IF5ioje8JH0LAA+5U7P+tabAMOL37k=—–END PKCS7—–“> <input type=”image” src=”https://www.paypalobjects.com/es_XC/MX/i/btn/btn_buynowCC_LG.gif” border=”0″ name=”submit” alt=”PayPal, la forma más segura y rápida de pagar en línea.”> <img alt=”” border=”0″ src=”https://www.paypalobjects.com/es_XC/i/scr/pixel.gif” width=”1″ height=”1″> </form> … Read more

Paying for multiple items (at once) via paypal

See this sample and make the changes to yours accordingly. Basically add underscore to item name before number and give unique name to amount also with underscore and number. You have to give amount to each item based on your carts totals. <form action=”https://www.paypal.com/cgi-bin/webscr” method=”post”> <input type=”hidden” name=”cmd” value=”_cart”> <input type=”hidden” name=”upload” value=”1″> <input type=”hidden” … Read more

IPN was not sent, and the handshake was not verified. Please review your information.

The handshake error is most likely to occur when your server/keystore config is non-compliant with the upgraded PayPal SSL encryption algorithms. IPN simulator will connect againest the PayPal Sandbox environment, which has been upgraded with Versign G5 root cert / SHA-2 encryption algorithms (btw this is an industry standard as supposed to be everywhere in … Read more

Paypal Access – SSL certificate: unable to get local issuer certificate

The correct solution is to fix your PHP setup.. setting CURLOPT_SSL_VERIFYPEER to false is a quick hack, but it’s wrong as you disable the certificate validation by it’s certificate authority. This exposes you to a man-in-the-middle attack. It’s easy to fix (php 5.3.7 or higher) – Download a list file with an up-to-date certificate authorities, … Read more

Web Reference vs. Service Reference

Add Web Reference is the old-style, deprecated ASP.NET webservices (ASMX) technology (using only the XmlSerializer for your stuff) – if you do this, you get an ASMX client for an ASMX web service. You can do this in just about any project (Web App, Web Site, Console App, Winforms – you name it). Add Service … Read more

Setting PayPal return URL and making it auto return?

You have to enable auto return in your PayPal account, otherwise it will ignore the return field. From the documentation (updated to reflect new layout Jan 2019): Auto Return is turned off by default. To turn on Auto Return: Log in to your PayPal account at https://www.paypal.com or https://www.sandbox.paypal.com The My Account Overview page appears. … Read more