A modern, nested AJAX comment engine for phpBB 3.3.x posts inspired by vBulletin 6 sub-panel design. It allows forum members to discuss and respond directly to individual posts within a topic without cluttering the main thread.

• Nested Sub-Panel Design: Modern card layout (#f8fafc background, subtle #e2e8f0 border, #0284c7 indicator bar, and clean circular 36px avatars).
• Pure AJAX Powered: Post, edit, delete, and paginated loading ("View earlier comments") occur seamlessly in real time without refreshing the page.
• Smart Toggle & Auto-Close: The comment form cleanly slides down on click, toggles closed with "+ Add Comment" or "Cancel", and automatically collapses after successful submission.
• Instant Keyboard Shortcuts: Press Ctrl + Enter (or Cmd + Enter on macOS) to instantly submit comments or save inline edits.
• Live Character Counter: Real-time character limit enforcement and dynamic warning indicator when approaching the configurable limit.
• Native Notifications: Sends real-time on-site notifications to post authors whenever someone comments on their post.
• Full RTL Support: Automatically adapts to Right-to-Left languages (Persian, Arabic, Hebrew) with flipped indicators, proper text direction, and directional icon flipping.
• Mobile & Touch Ergonomics: Fluid responsive layout with thumb-friendly touch targets on mobile screens ($\le 500\text{px}$).
• Granular Permissions: Full integration with phpBB's permission system for both user groups and moderators (f_comment_view, f_comment_post, f_comment_edit_own, f_comment_delete_own, m_comment_edit, m_comment_delete).
• Full ACP Management: Comprehensive ACP module under General / Extensions allowing administrators to control forum enablement, comment ordering, initial limit, character length, BBCode, smilies, and notifications.
• 100% Localizable: Zero hardcoded strings. Every single phrase is isolated in language files for effortless translation.

• phpBB: 3.3.0 or higher (fully tested on phpBB 3.3.14 - 3.3.19)
• PHP: 7.4, 8.0, 8.1, 8.2, 8.3, or 8.4

Clone or download the repository into your phpBB installation under the exact path:

phpbb_root/
└── ext/
    └── phpbbseo/
        └── postcomments/

Via Git:

cd /path/to/phpbb/ext/
mkdir -p phpbbseo
cd phpbbseo
git clone https://github.com/phpbb-seo/phpbb-post-comments.git postcomments

1. Log into your phpBB Administration Control Panel (ACP).
2. Navigate to Customise → Manage extensions.
3. Under Disabled Extensions, find phpBB Post Comments and click Enable.

Navigate to ACP → Extensions → Post Comments → Settings to adjust display limits, character caps, and forum selection.

The extension adds the following permissions in ACP → Permissions:

• Can view post comments (f_comment_view)
• Can post comments to posts (f_comment_post)
• Can edit own post comments (f_comment_edit_own)
• Can delete own post comments (f_comment_delete_own)

• Can edit any post comment (m_comment_edit)
• Can delete any post comment (m_comment_delete)

(Pre-configured roles Standard Forum, Full Forum, and Standard / Full Moderator are automatically granted default permissions upon installation).

To translate the extension into your language:

1. Copy ext/phpbbseo/postcomments/language/en/ to ext/phpbbseo/postcomments/language/<lang_iso>/ (e.g. fa for Persian).
2. Translate the three language files:
   • common.php (frontend phrases, errors, notifications)
   • info_acp_postcomments.php (ACP settings and explanations)
   • permissions_postcomments.php (permission names)

GPL-2.0-only © 2026 Meis@M (phpBB SEO).
Distributed under the terms of the GNU General Public License v2.