PHP_CodeSniffer : PHP_CodeSniffer tokenises PHP, JavaScript and CSS files and detects violations of a defined set of coding standards.
atoum : A simple, modern and intuitive unit testing framework for PHP!
Deployer : Deployer is a deployment tool written in PHP.
Zephir Language : Zephir, an open source, high-level/domain specific language designed to ease the creation and maintainability of extensions for PHP with a focus on ty...
Pre is a PHP preprocessor, designed to make adding new syntax effortless. It's also a collection of pre-built macros, which we use because they make our code clearer and simpler.