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Project Type: WordPress Reference

Walker_CategoryDropdown

Creates an HTML dropdown (<option> elements) for categories. Since: 2.1.0 Source: wp-includes/class-walker-category-dropdown.php Used by: wp_dropdown_categories() Class Synopsis class Walker_CategoryDropdown extends Walker { public $tree_type = 'category'; public $db_fields = [...

February 12, 2026 Read More

Walker_Category

Creates an HTML list of categories. Since: 2.1.0 Source: wp-includes/class-walker-category.php Used by: wp_list_categories() Class Synopsis class Walker_Category extends Walker { public $tree_type = 'category'; public $db_fields = [ 'parent' =>...

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WP_Session_Tokens

Abstract class for managing user session tokens. Source: wp-includes/class-wp-session-tokens.php Since: 4.0.0 Overview WordPress uses session tokens to track authenticated user sessions. Each login creates a token stored in a cookie...

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User Functions

Core functions for user management, authentication, metadata, and utilities. Source: wp-includes/user.php, wp-includes/capabilities.php, wp-includes/pluggable.php User Retrieval get_user() Retrieves user by ID. get_user( int $user_id ): WP_User|false Since: 6.7.0 Parameter Type Description...

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User Hooks

Actions and filters for user management, authentication, roles, and capabilities. Source: wp-includes/user.php, wp-includes/capabilities.php, wp-includes/class-wp-*.php Authentication Actions wp_authenticate Fires before user is authenticated. do_action_ref_array( 'wp_authenticate', array( &$user_login, &$user_password ) ); Variables...

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WordPress Users API

Core system for managing users, authentication, roles, and capabilities. Since: 2.0.0 Source: wp-includes/user.php, wp-includes/capabilities.php, wp-includes/class-wp-*.php Components Component Description functions.md User CRUD, authentication, meta, and utility functions class-wp-user.md Individual user instance...

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WP_Duotone

Manages duotone block supports and global styles. Source: wp-includes/class-wp-duotone.php Since: 6.3.0 Access: Private/Internal Overview Duotone applies a two-color gradient effect to images using SVG filters. WP_Duotone handles: Color parsing (hex,...

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WP_List_Util

Utility class for performing operations on arrays of objects or arrays. Source: wp-includes/class-wp-list-util.php Since: 4.7.0 Properties Property Type Visibility Description $input array private Original input array $output array private Current...

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WordPress Update System

Source: wp-includes/update.php Since: WordPress 2.3.0 Purpose The Update system checks for available updates to WordPress core, plugins, and themes by querying the WordPress.org API. It handles update detection, caching via...

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WP_Role Class

Core class representing a single user role with its capabilities. Since: 2.0.0 Source: wp-includes/class-wp-role.php Overview WP_Role represents an individual role (e.g., "editor", "subscriber") and provides methods for managing its capabilities....

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