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Project Type: WordPress Reference

Text Diff Hooks

Filters for customizing diff output processing. Filters process_text_diff_html Filters a diffed line after HTML encoding but before output. Since: 4.1.0 apply_filters( 'process_text_diff_html', string $processed_line, string $line, string $context ): string...

February 12, 2026 Read More

_WP_Editors Class Reference

The _WP_Editors class facilitates adding the WordPress editor (TinyMCE and Quicktags) to pages. This is a private/internal class - use the public API functions like wp_editor() instead of calling methods...

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WordPress Classic Editor API Overview

The WordPress Classic Editor API provides integration with TinyMCE (visual editor) and Quicktags (code editor) for rich text editing throughout WordPress. This is the editor system used before the Block...

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Editor Functions Reference

Public functions for working with the WordPress Classic Editor (TinyMCE and Quicktags). File: wp-includes/general-template.php (primary) Additional: wp-includes/formatting.php, wp-includes/theme.php wp_editor() Renders a TinyMCE/Quicktags editor instance. function wp_editor( string $content, string $editor_id,...

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Editor Hooks Reference

Filters and actions for customizing the WordPress Classic Editor (TinyMCE and Quicktags). Filters wp_editor_settings Filter the wp_editor() settings before parsing. apply_filters( 'wp_editor_settings', array $settings, string $editor_id ) Parameters: Parameter Type...

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WP_PHPMailer

WordPress extension of PHPMailer providing internationalized error messages. Since: 6.8.0 Source: wp-includes/class-wp-phpmailer.php Extends: PHPMailerPHPMailerPHPMailer Purpose WP_PHPMailer overrides PHPMailer's language handling to use WordPress's internationalization system (__()). This ensures error messages...

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WordPress Database API (WPDB)

WordPress database abstraction layer built on MySQLi. Since: 0.71 Source: wp-includes/class-wpdb.php Components Component Description class-wpdb.md Main database class - properties, methods, usage hooks.md Database-related actions and filters Architecture Global Instance...

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Database API Hooks

Actions and filters for the WordPress Database API (WPDB). Filters query Filters the database query before execution. apply_filters( 'query', string $query ) Parameter Type Description $query string The SQL query...

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WP_Text_Diff_Renderer_inline

Inline diff renderer with improved word splitting for multilingual support. Source: wp-includes/class-wp-text-diff-renderer-inline.php Since: 2.6.0 (class), 4.7.0 (separate file) Extends: Text_Diff_Renderer_inline Purpose This class improves upon the PEAR Text_Diff_Renderer_inline by providing...

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WP_Text_Diff_Renderer_Table

Table-based renderer for displaying diff output in a two-column HTML table format. Source: wp-includes/class-wp-text-diff-renderer-table.php Since: 2.6.0 Extends: Text_Diff_Renderer Properties Public Properties Property Type Default Description $_leading_context_lines int 10000 Lines of...

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