POST THANKS HACK - PHP 7.0-7.4 COMPATIBILITY UPGRADE
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This document summarizes the changes made to make the Post Thanks Hack compatible with PHP 7.0-7.4.

CHANGES MADE:
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1. MAIN FILES UPDATED:
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File: post_thanks.php
- Updated error reporting to exclude E_DEPRECATED and E_STRICT
- Fixed reference assignments (&) that are deprecated in PHP 7
- Fixed variable references in loops

File: includes/functions_post_thanks.php
- Added TIMENOW constant definition for compatibility
- Fixed ternary operator syntax
- Fixed array key access (added quotes around keys)
- Improved variable initialization
- Fixed string concatenation with integers
- Added proper variable scoping

File: admincp/post_thanks_admin.php
- Updated error reporting to exclude E_DEPRECATED and E_STRICT
- Fixed array key access (added quotes around keys)
- Added intval() casting for database queries to prevent SQL injection
- Improved isset() checks for array elements

2. JAVASCRIPT:
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File: clientscript/post_thanks.js
- No changes needed - uses YUI library which is compatible with PHP 7

3. COMPATIBILITY FIXES APPLIED:
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- Removed deprecated reference assignments (&)
- Fixed array key syntax (added quotes)
- Added proper variable initialization
- Improved error reporting settings
- Added integer casting for database operations
- Fixed ternary operator syntax
- Added constant definitions where needed

TESTING RECOMMENDATIONS:
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1. Test installation on PHP 7.0-7.4 environment
2. Verify all functionality works:
   - Adding thanks
   - Removing thanks
   - Viewing thanks lists
   - Admin recount functions
   - AJAX functionality
3. Check error logs for any warnings
4. Test with different user permissions
5. Verify database operations work correctly

BACKUP RECOMMENDATION:
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Always backup your forum and database before applying these changes.

KNOWN LIMITATIONS:
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- This upgrade maintains backward compatibility with vBulletin 3.8
- Some features may require further testing in your specific environment
- Custom modifications to the original hack may need additional adjustments

VERSION INFO:
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Original: Post Thanks Hack 7.7 for vBulletin 3.6.x-3.7.x
Upgraded: Compatible with PHP 7.0-7.4
Date: January 2026

For support, refer to the original vBulletin community forums.