If Vim is your editor of choice, and WordPress is something you work with on a regular basis, then check out WordPress.vim – a Vim plugin for WordPress development.
Some of the features are:
- Auto-Completion for the WordPress API
- WordPress Hooks Integration
- WP-CLI Integration
- Jump to Definition in WordPress Core
- UltiSnips Snippets
- Syntax Highlighting for WordPress PHP files.
- Markdown Syntax Highlighting for readme.txt
- PHPCS Syntax Checker integrated with WordPress Coding Standards
- Search in Codex
- Integration with WpSeek API.
- Readme.txt Auto Validation.