PhpStorm & Web Storm 2.x (Q2, 2011) 
- PHP (PhpStorm only!)
- "Any framework" support mechanism via ability to supply extensive metadata about autoload & magic infrastructure
- Zend framework support (MVC view
, generators
, specific navigations
)
- Symfony framework support (MVC view
, generators
, specific navigations
)
- Refactoring: extract method/function
.
- Phing support
- "Any framework" support mechanism via ability to supply extensive metadata about autoload & magic infrastructure
- HAML
- CSS
- LESS compilation support ?
- SASS 3 compilation support ?
- LESS compilation support ?
- XSLT 2 editor support
PhpStorm & Web Storm 2.0 (Feb, 2011) 
- PHP (PhpStorm only!)
- Zend framework support (zend_tool
)
- Symfony framework support (symfony commandline tool
)
- Zend debugger support
- Refactoring: Smart introduce field
/ constant
, safe delete
, inline variable
.
- New code inspections
*** Control flow / Unreachable statement
- Control flow / Wrong catch clauses order
- Probable bug / Wrong string concatenation operator
- Type compatibility / Invalid foreach() argument type
- Control flow / Unused parameter
- Control flow / Wrong catch clauses order
- full fledged PHP namespace support
- Structure view sorting and filtering
- Zend framework support (zend_tool
- SQL (PhpStorm only!)
- New full-fledged code editor for SQL console
- Editable query results grid
- BLOB support
- New full-fledged code editor for SQL console
- CSS
- LESS editor support
- SASS 3 support
- LESS editor support
- Language Injection
** Improved automatic SQL & HTML injection into PHP string literals
- New editor of injected fragments
- New editor of injected fragments
- Version control support
- New DVCS UI (Git, etc) with easy multiple repository branch switching, built-in log views and integrated cherrypicking, etc.
- Softwrap in code editor
, spellchecking at completion in all controls (i.e. commit dialog)
- Mercurial support
- New DVCS UI (Git, etc) with easy multiple repository branch switching, built-in log views and integrated cherrypicking, etc.
- Other
- Streamlined UI: more compact layout, better indication, better blending into OS style
- RelaxNG support
- Streamlined UI: more compact layout, better indication, better blending into OS style
PhpStorm & Web Storm 1.0 (Released in June 2010) 
- HTML/XHTML/XML/XSLT/XPATH
- JavaScript (laguage standard 1.6 with partial 1.7)
- Editing (syntax, code completion, code inspections, etc.)
- Refactoring
- Go to symbol, declaration
- Structure view
- Advanced support for frameworks (JSON, DoJo, JSDoc, jQuery, Prototype) (check FAQ on other framework support)
- CSS
- PHP (PhpStorm only!)
- full 5.3 syntax support
- scope-aware code completion
- PHP refactorings: rename, introduce variable.
- advanced code inspections (visibility, type checking, etc)
- Language injection - SQL in PHP
- support for any type of outer language - HTML, CSS, XML, SQL, etc..
- Frameworks & libs: Smarty (check FAQ on other framework support)
- SQL (PhpStorm only!)
- syntax and error highlighting
- keywords, table and column names completion
- SQL Console
- generic SQL (SQL-92)
- MySQL
- MSSQL
- ORACLE
- PostgreSQL
- SQLite
- Spell Checker
- FTP/SFTP sync
- XSLT
Try PhpStorm EAP
Legend
- Feature Implemented
- Under Investigation
- In Progress