awesome-php.md

 * [Elastica](https://github.com/ruflin/Elastica) - A client library for [Elastic Search](http://www.elasticsearch.org/).
 * [Serializer](https://github.com/schmittjoh/serializer) - A library for serialising and de-serialising data.
 * [Numbers PHP](https://github.com/powder96/numbers.php) - A library for working with numbers.
+* [Patchwork UTF-8](https://github.com/nicolas-grekas/Patchwork-UTF8) - A portable library for working with UTF-8 strings.
 
 # Official APIs