atoum : A simple, modern and intuitive unit testing framework for PHP!
Its Continuous! : The tweet-sized continuous integration app for PHP development.
Goutte : Goutte is a screen scraping and web crawling library for PHP.
Goutte provides a nice API to crawl websites and extract data from the HTML/XML response...
PHP_CodeSniffer : PHP_CodeSniffer tokenises PHP, JavaScript and CSS files and detects violations of a defined set of coding standards.
FireLogger : A sexy server logger console in Firebug
A tool for quickly profiling variables and resources used by PHP.
