PhpStorm is a lightweight and smart PHP IDE focused on developer productivity that deeply understands your code, provides smart code completion, quick navigation and on-the-fly error checking. It is always ready to help you shape your code, run unit-tests or provide visual debugging. Key features of the PHP IDE: - Smart DOM-based autocompletion - PHP 5.3 support (namespaces & closures) - PhpUnit support - Smart refactorings - Zend Debugger & Xdebug - Browser-initiated debugging support - JavaScript 5 support, "use strict" mode - JavaScript Debugger - HTML5 Support - Zen Coding - Language Mixing - FTP and Remote Files Synchronization - Git & Mercurial support - Spell checker