PayPal Merchant API

PayPal documentation

• PayPal PHP SDK Wiki
• PayPal REST API Samples - PayPal Developer
  • Create Payment Using PayPal as Payment Method - PayPal Developer
  • Execute Payment Sample - PayPal Developer
• Getting Started With Express Checkout

Developer account and settings

• [1]

Sandbox test accounts

• shop-facilitator@bfhhandwriting.com, pw: ?
• shop-buyer@bfhhandwriting.com, pw: lowest