# Collections
[](http://ci.cartalyst.com/build-status/view/49)
A Collections Abstraction library for PHP
The Collection library is one of the most useful things that many modern languages has, but for some reason PHP doesn't has a built in collection layer.
The package requires PHP 5.4+ and follows the FIG standards PSR-1, PSR-2 and PSR-4 to ensure a high level of interoperability between shared PHP.
An open source package by [Cartalyst](https://cartalyst.com), code well, rock on!
## Documentation
Reader-friendly Documentation can be found here. [Collections Manual](https://cartalyst.com/manual/collections).
Raw files can be found via this projects docs/version branch.
- [1.1](https://github.com/cartalyst/collections/tree/docs/1.1)
- [1.0](https://github.com/cartalyst/collections/tree/docs/1.0)
## Changelog
Important versions listed below. Refer to the [Changelog](CHANGELOG.md) for a full history of the project.
- [1.1](CHANGELOG.md) - 2015-03-06
- [1.0](CHANGELOG.md) - 2015-02-18
## Support
The following support channels can be used for contact.
- [Twitter](https://twitter.com/@cartalyst)
- [Email](mailto:help@cartalyst.com)
Bug reports, feature requests, and pull requests can be submitted by following our [Contribution Guide](CONTRIBUTING.md).
## Contributing & Protocols
- [Versioning](CONTRIBUTING.md#versioning)
- [Coding Standards](CONTRIBUTING.md#coding-standards)
- [Pull Requests](CONTRIBUTING.md#pull-requests)
## License
This software is released under the [BSD 3-Clause](LICENSE) License.
© 2011-2015 Cartalyst LLC, All rights reserved.
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Email: [email protected]