Advices on creating a first e-Commerce application?

I need to create a e-comme开发者_如何转开发rce application in PHP. As a first option I though to use Magento, that I already used one or two times in the past. But as the requirements are growing, I think Magento is not correct choice, there are too much options I don't need, and some options which are not available and/or some customization which will be difficult.

So I think I'll write it from the scratch using Zend Framework which I'm used too.

Do you have any advices to start ?

I think for example about :

• Session storing (filesystem <-> db) ?
• Payment module security (Paypal, CB, and checks)
• Computation with SQL Stored Procedures ?

What is yours ?

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Luhn algorithm could interest you, it is used to check against valid credit card number

Not really an anwser but I would suggest you to think about payment informations storage (credit card number, etc..)

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I would suggest you to go with OpenCart. It is light-weight, fast, reliable with all the almost all the features needed for an ecommerce solution.

OpenCart is a turn-key ready "out of the box" shopping cart solution. You simply install, select your template, add products and your ready to start accepting orders.

Have a look at the features as well.