Rolf Allard van Hagen

zackdesign

AliasIO

Note: This plugin requires PHP 5
Quick Shop supports any WordPress that has the Sidebar Widgets installed, really. It adds a SideBar widget that shows the user what
they currently have in the cart and allows them to remove the items, not to mention a TinyMCE button to easily allow you to add products to your posts/pages.
Also, you will need to make your own CSS for this. I’ve included enough classes/ids for you.
Features:
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Inventory listing tied in to TinyMCE
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Integrates automatically with CFormsII (and uses CFormsII API so you can edit it easily yourself)
</li>
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Full range of formatting for widget layout in Admin -> Options -> Quick Shop
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Shopping cart Widget
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Checkout page
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Ability to create different product options in a drop-down
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WordPress MU compatible
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</ul>
One of my clients required a quick and dirty shopping cart for WordPress. The background:
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They had more than one product per post
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They only wanted orders to be sent via email
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They only needed EFT (Electronic Fund Transfer – like Direct Debit or Internet Banking)
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</ol>
Thus, Quick Shop was born thanks to the excellent way in which the WordPress Plugin API is set up.
List of possible future features:
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<li>
AJAX implementation
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Inventory quantities
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</ul>
Please be aware that I’ll only be updating this if I need to or if I’m paid to. Feel free to come on board and contribute!

Quick Shop

Quick Shop is a Wordpress Shopping Cart with both Paypal and Email functionality built-in.

Paolo T. (pixline)

swergroup

This plugin allow to insert Paypal buttons in your posts or pages, just using a shortcode. 
You can define your email and currency in the Settings › Writing admin panel.
<h4>[paypal type=”add” name=”Item Name vol. 1″ amount=”12.99″]</h4>
This shortcode will print the “Add to cart” button: it will add “Item Name vol. 1” (priced 12.99[currency]) in your paypal cart.
<h4>[paypal type=”view”]</h4>
This shortcode will print the “View cart” button.

Paypal Shortcodes

This plugin allow to insert Paypal buttons in your posts or pages with a shortcode like [paypal type="add|view"].

Quick Shop vs Paypal Shortcodes