Kairo QR Code Generator is a powerful, production-ready PHP platform for generating and managing QR codes. Designed for freelancers, agencies, and SaaS entrepreneurs, it combines ease of use with enterprise-grade features. Live preview coming soon — all features are fully documented and tested. Screenshots included for now.

• QR Code Generation: Supports text, URL, WiFi, vCard, SMS, Phone, Email, Calendar, and Geo templates.
• Customization: Add logos, change colors, adjust size and margin, and download in PNG, SVG, or PDF.
• User Dashboard: Save QR codes to campaigns, manage downloads, and track analytics.
• Admin Panel: Manage users, campaigns, analytics, and branding settings.
• Analytics: Track QR scans with per-user filtering and click tracking.
• Payment Integration: Stripe and PayPal support for premium upgrades.
• AdSense Integration: Monetize free-tier and guest users with configurable ads.
• Security: Secure sessions, bcrypt password hashing, PDO prepared statements.
• Responsive Design: Works across desktop, tablet, and mobile.
• White-Label Ready: Easily rebrand for client or agency use.

• PHP 7.4+ or PHP 8.x
• MySQL or SQLite
• Web server (Apache/Nginx)
• Basic knowledge of PHP and hosting

Installation Steps:

1. Upload Files
   • Unzip the package you downloaded from Codester.
   • Upload all files to your web server (Apache/Nginx).
2. Database Setup
   • Create a new MySQL database (or use SQLite if preferred).
   • Import the provided SQL file (database.sql) or let the auto‑initialization run on first load.
3. Configuration
   • Open config.php and update the following:
     • Database credentials (host, username, password, db name).
     • BASE_URL constant to match your domain.
   • Optional: Toggle ads in Branding → Ads Settings tab.
4. Admin Access
   • Default admin login credentials are provided in the documentation.
   • Log in to branding.php to configure:
     • Logo, favicon, and app icon.
     • PayPal and Stripe tokens.
     • AdSense code (optional).
5. User Access
   • Users can register accounts via index.php.
   • Free‑tier users see ads and basic QR features.
   • Premium users (after payment) get ad‑free experience and advanced features.
6. Testing
   • Generate QR codes using templates (WiFi, vCard, SMS, Phone, Email, Calendar, Geo).
   • Save campaigns to dashboard.
   • Verify analytics tracking.
   • Confirm payments and subscription upgrades.

Notes:

• Works with PHP 7.4+ and PHP 8.x.
• Requires MySQL or SQLite database.
• Responsive design, mobile‑friendly.