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Hook Locator
Version: 1.0
Description
Hook Locator is the ultimate WordPress development tool for analyzing hook usage across your plugins and themes. Built for developers, it provides a professional admin interface to search, analyze, and understand WordPress hook implementations.
Key Features
- Advanced Hook Search – Find any WordPress hook across all plugins and themes
- Organized Directory Selection – Separate dropdowns for plugins and themes with clean organization
- Detailed Code Analysis – View exact file locations with highlighted code context
- Multiple Hook Types – Supports add_action, add_filter, do_action, apply_filters, and more
- Professional Interface – Clean, modern admin UI following WordPress design standards
- Performance Optimized – Efficient scanning with built-in safeguards and limits
- Security First – Proper nonce verification, sanitization, and capability checks
- Developer Tools – Click-to-copy code snippets, keyboard shortcuts, and export features
Perfect For
- Plugin Developers – Debug hook conflicts and understand plugin interactions
- Theme Developers – Analyze theme hook implementations and customizations
- Code Auditors – Review hook usage patterns and security implementations
- WordPress Learners – Understand how WordPress hooks work in real code
- Site Maintainers – Debug issues and optimize hook performance
How It Works
- Search Interface – Enter any hook name and select search location
- Instant Results – View all matching files with line numbers and hook types
- Code Context – Click any result to see highlighted code with surrounding lines
- Analysis Tools – Get insights about hook types, usage patterns, and best practices
WordPress Standards Compliant
- PHPCS/WPCS Compatible – Follows all WordPress coding standards
- Secure Implementation – Proper sanitization, nonces, and capability checks
- Performance Optimized – Efficient file scanning with resource limits
- Accessibility Ready – Keyboard navigation and screen reader compatible
- Translation Ready – Full internationalization support
Advanced Usage
Keyboard Shortcuts
- Ctrl/Cmd + K – Focus search input
- Ctrl/Cmd + Enter – Submit search form
- Escape – Clear search input
- Click code snippets – Copy to clipboard
Hook Types Supported
add_action()
– Register action hooksadd_filter()
– Register filter hooksdo_action()
– Trigger action hooksapply_filters()
– Apply filter hooksremove_action()
– Remove action hooksremove_filter()
– Remove filter hookshas_action()
– Check for action hookshas_filter()
– Check for filter hooks
Performance Features
- Smart Scanning – Skips large files and non-PHP files
- Resource Limits – Maximum 1000 files per search to prevent timeouts
- Efficient Parsing – Optimized regex patterns for hook detection
- Memory Management – Careful memory usage to prevent server issues
Developer Information
Code Standards
- PHPCS/WPCS Compliant – Passes all WordPress coding standards
- Security First – Proper sanitization, validation, and capability checks
- Performance Optimized – Efficient algorithms and resource management
- Accessibility Ready – Full keyboard navigation and screen reader support
- Translation Ready – Complete internationalization with proper text domains
Technical Specifications
- Minimum PHP: 7.4
- WordPress: 5.0+
- File Size Limit: 1MB per file
- Scan Limit: 1000 files per search
- Memory Usage: Optimized for shared hosting
Support & Development
- GitHub: Coming soon for issue reporting and contributions
- Documentation: Complete inline code documentation
- Extensibility: Action and filter hooks for customization
Privacy
Hook Locator respects your privacy and follows WordPress privacy best practices:
- No Data Collection – No personal or usage data is collected or transmitted
- Local Operation – All scanning happens locally on your server
- No External Requests – No data is sent to external services
- Admin Only – Only users with administrator privileges can use the plugin
- No Tracking – No analytics, tracking pixels, or cookies are used
Support
Need help with Hook Locator?
- Documentation – Check the built-in help and tooltips in the admin interface
- WordPress Forums – Ask questions in the WordPress.org support forums
- GitHub Issues – Report bugs and request features (coming soon)
- Professional Support – Premium support available for enterprise users
Hook Locator is actively maintained and supported. We’re committed to keeping it updated with the latest WordPress versions and continuously improving its functionality based on user feedback.
Installation
Automatic Installation
- Go to Plugins > Add New in your WordPress admin
- Search for “Hook Locator”
- Click Install Now and then Activate
Manual Installation
- Download the plugin ZIP file
- Go to Plugins > Add New > Upload Plugin
- Choose the ZIP file and click Install Now
- Activate the plugin
Getting Started
- Navigate to Tools > Hook Locator in your WordPress admin
- Enter a hook name (e.g., “init”, “wp_head”, “save_post”)
- Select search location (All, specific plugin, or theme)
- Click Search Hooks to see results
- Click View Details on any result for code analysis
Screenshots
Faq
No! Hook Locator only runs in the WordPress admin when you actively search. There’s no frontend code or background processing that affects your site’s performance.
Hook Locator searches only PHP files (.php) since WordPress hooks are PHP-based. It automatically skips other file types for optimal performance.
Absolutely! Hook Locator finds any hook name you specify, including custom hooks created by plugins, themes, or your own code.
Yes, Hook Locator is completely safe for production use. It only reads files and never modifies any code. All operations are restricted to users with administrator privileges.
Yes, Hook Locator works perfectly with WordPress multisite installations. Each site can use it independently to analyze their specific plugins and themes.
Currently, you can copy individual code snippets to your clipboard. Future versions may include CSV/JSON export functionality based on user feedback.
Hook Locator focuses on static code analysis rather than runtime hook capture. This makes it more accurate, secure, and performant while providing deeper code insights.
Reviews
Changelog
1.0.0
- Separated plugins and themes in dropdown with optgroups
- Much clearer code highlighting with better contrast
- Modern, professional UI with better spacing and typography
- Full WordPress coding standards compliance (PHPCS/WPCS)
- Comprehensive nonce verification and sanitization
- Proper Yoda conditions throughout codebase
- Complete function and class documentation
- All margin and padding issues for consistent layout
- Optimized file scanning with better resource management
- Complete rewrite for admin-only operation
- Added file scanning for plugin/theme directories
- New professional search interface with directory selection
- Detailed code context view with syntax highlighting
- Performance optimizations and security improvements
- Better user interface with WordPress admin styling