FLAC stands for Free Lossless Audio Codec. Grossly oversimplified, FLAC is similar to MP3, but lossless. The FLAC project consists of:

This PostgreSQL extension shows the query plans of all currently running SQL statements. Plan output format can be plain text (default), JSON, YAML, or XML.

The evaluation of a mathematical expression is a standard task required in many applications. It can be solved by either using a standard math expression parser such as muparser or by embedding a scripting language such as Lua. There are however some limitations: Although muparser is pretty fast it will only work with scalar values and although Lua is very flexible it does neither support binary operators for arrays nor complex numbers. So if you need a math expression parser with support for arrays, matrices and strings muparserx may be able to help you. It was originally based on the original muparser engine but has since evolved into a standalone project with a completely new parsing engine.

The APCu is userland caching: APC (Alternative PHP Cache) stripped of opcode caching after the deployment of Zend OpCache in PHP 5.5 as the primary solution to opcode caching in future versions of PHP.

This extension can communicate with any AMQP spec 0-9-1 compatible server, such as RabbitMQ, OpenAMQP and Qpid, giving you the ability to create and delete exchanges and queues, as well as publish to any exchange and consume from any queue.

An PHP extension providing specialized data structures as efficient alternatives to the PHP array.