Intelephense is a high-performance multi-platform PHP language server that adheres to the Language Server Protocol (LSP).

If used in conjunction with an LSP powerful editor, it gives an essential set of features for code intelligence to provide a rich and productive PHP programming experience.

• Code completion. Quick and accurate camel/underscore context-aware suggestions that automatically add usage declarations.
• Signature Help. Find out more about the parameters and hints to expressions for calls.
• Go to definition. Find the definitions for symbols quickly.
• Search for all the references. Find symbols quickly inside the Workspace.
• Symbol search. Quick camel/underscore search for document symbol and workspace definitions.
• Diagnostics. Error-tolerant parser and an advanced static analysis tool will report issues while you enter.
• Formatting. PSR12 complete document format with range formatting.
• Support for embedded languages. Includes HTML/JS/CSS code intelligence too.
• Hover. Information on hovering in detail, with hyperlinks to the official PHP documentation.
• Highlight. Innovative highlighting of references as well as keywords.

PHP Intelephense for Visual Studio Great Features:

• Fast camel/underscore case code completion (IntelliSense) for document, Workspace, and built-in symbols and keywords with automatic addition of use declarations.
• Detailed signature (parameter) help for document, Workspace, and built-in constructors, methods, and functions.
• Rapid Workspace wide goes to definition support.
• Workspace-wide, find all references.
• Fast camel/underscore case workspace symbol search.
• Full document symbol search that also powers breadcrumbs and outline UI.
• Multiple diagnostics for open files via an error-tolerant parser and powerful static analysis engine.
• Lossless PSR-12 compatible document/range formatting. Formats combined HTML/PHP/JS/CSS files too.
• Embedded HTML/JS/CSS code intelligence.
• Detailed hover with links to official PHP documentation.
• The bright highlights of references and keywords.
• Reads PHPStorm metadata for improved type analysis and suggestions.
• Easy rename of symbols. When appropriate, files/folders are automatically renamed too.
• Accurate code folding of definitions, blocks, declarations, heredoc, comments, and custom regions.
• Quickly find all implementations of interfaces and abstract classes, and associated methods.
• Fast go to type definition of typed variables and parameters.
• Fast go to declaration for methods implementing an interface or abstract method declaration.
• Configurable auto PHPDoc creation that infers return types and identifies thrown exceptions.
• Syntax tree-driven smart select to intelligently expand/shrink selection.
• Helpful code actions to import symbols, add PHPDoc, and implement all abstract methods.