ionCube PHP Encoder - Get true Protection and Licensing your PHP scripts and website. ionCube 6.5 leads the field in PHP security. Their solution now not only uses compiled code and can obfuscate source code elements such as function names, but now natively processes obfuscated bytecodes. IonCube not only has a standalone PHP Encoder version with many great features, but they also offer online encoding. Compile your application for a fraction of the cost of Zend.

Buyers - PayPal allows you to securely purchase from companies without exposing your credit card information.

Sellers

• Allows your buyer to pay without sharing their credit card information with you. 
• 3 ways to sell.  The Buy Button, Instant Payment Notification, and now offer Website Payments Pro, which allows your customers to buy and pay on your site.
• No high cost merchant account fees or hidden fees.
• Customers do not need a PayPal account to buy from you.