Shopping Cart Libraries for Zend Framework

currently i am designing a shopping cart in Zend Framework. I decided to write code for user/roles/product catalog from scratch which i have already done and tested. But for other things i need you guys to guide me which are the best classes/libraries to build this system system.

I need following functionality as

1. Ord开发者_如何学Pythoner
2. Inventory
3. Accounts
4. Paypal Integration
5. UPS/USPS/Fedex Integration.

and thanks for your time.

Note: I have already gone through magento modules, its bit difficult to extract from it what i need, so it will be last resort for me.

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External vendors such as Paypal or Fedex has guides on their sites.

Take a look like other do this:

• Magento Commerce
• Opencart
• PrestaShop
• OsCommerce
• Zen Cart
• Digistore
• CREloaded
• Zeuscart
• ShopperPress

I'm surprised it's difficult to extract. Magento architecture isn't very complicated.

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Forget trying to "extract it yourself". Here's an actual tutorial that shows you how to use the Zend Framework and PayPal API calls.

http://www.alexventure.com/.../zend-framework-and-the-paypal-api-part-1-of-2/

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Zend Framework doesn't have libraries, it's a framework which means all the stuff you need for the libraries and shopping cart is there... you'll just have to write them yourself