Flarum Image Dimensions

A Flarum extension that automatically adds width and height attributes to images in posts, improving page load performance and preventing layout shifts.

Features

• 🚀 Automatically detects and adds image dimensions
• ⚡ Adds loading="lazy" attribute for better performance
• 🔍 Console command to audit existing posts with flexible modes
• 📧 Email reports for batch operations
• ⏰ Scheduled automatic checks (daily/weekly/monthly)
• ⚙️ Configurable check modes (fast/default/full)
• ✅ Supports BBCode, Markdown, and auto-linked images

Installation

composer require dshovchko/flarum-image-dimensions

Usage

Automatic Processing

Once enabled, the extension automatically adds dimensions to all new images posted.

Scheduled Checks

Configure automatic checks via the admin panel:

1. Go to Admin → Extensions → Image Dimensions
2. Enable Scheduled Checks
3. Set Check Frequency (daily/weekly/monthly)
4. Choose Check Mode:
   • Fast: Only verify attributes exist
   • Default: Verify attributes + URL validity
   • Full: Verify exact dimensions
5. Set Batch Size (number of discussions per run)
6. Add Email Recipients (comma-separated)

⚠️ Requires Flarum scheduler to be configured. Add to your crontab:

* * * * * cd /path/to/flarum && php flarum schedule:run >> /dev/null 2>&1

Manual Console Command

Audit existing posts using the image-dimensions:check console command:

# Check a single discussion
php flarum image-dimensions:check --discussion=123

# Check a specific post
php flarum image-dimensions:check --post=456

# Scan all discussions in batches of 250
php flarum image-dimensions:check --all --chunk=250

# Fast mode (verifies only width/height attributes)
php flarum image-dimensions:check --discussion=123 --fast

# Full mode (verifies URLs and actual image dimensions)
php flarum image-dimensions:check --discussion=123 --full

# Email the report
php flarum image-dimensions:check --all [email protected]

# Automatically fix (upcoming feature)
php flarum image-dimensions:check --discussion=123 --fix

ℹ️ The command requires one of --discussion=<id>, --post=<id>, or --all.

Supported Image Formats

• JPG/JPEG
• PNG
• GIF
• WebP
• SVG/SVGZ

For AVIF support: Install dshovchko/flarum-avif-support extension (requires PHP 8.2+ for dimensions)

Why Image Dimensions Matter

Adding width and height attributes to images:

• Prevents Cumulative Layout Shift (CLS)
• Improves Core Web Vitals scores
• Enhances SEO rankings
• Provides better user experience

Requirements

• Flarum ^1.0
• PHP 7.4+

Links

• GitHub Repository
• Packagist
• Flarum Community

License

MIT