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Getting Started




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Omnipay is a payment processing library for PHP. It has been designed based on ideas from Active Merchant, plus experience implementing dozens of gateways for CI Merchant. It has a clear and consistent API, is fully unit tested, and even comes with an example application to get you started.

Why use Omnipay?

So, why use Omnipay instead of a gateway’s official PHP package/example code?

Upgrading to 2.0

If you are upgrading from a pre-2.0 version of Omnipay, please note that the project has now been split into multiple packages. There have also been some changes to how gateway instances are created. See the full release notes for more details.


If you are having general issues with Omnipay, we suggest posting on Stack Overflow. Be sure to add the omnipay tag so it can be easily found.

If you want to keep up to date with release anouncements, discuss ideas for the project, or ask more detailed questions, there is also a mailing list which you can subscribe to.

If you believe you have found a bug, please report it using the GitHub issue tracker for the appropriate package, or better yet, fork the library and submit a pull request.


Please provide feedback! We want to make this library useful in as many projects as possible. Please head on over to the mailing list and point out what you do and don’t like, or fork the project and make suggestions. No issue is too small.