Converted queries in:
- functions.php:
* getTripCount() - Hardcoded query
* getAvailableSpaces() - Two queries using $trip_id parameter (HIGH PRIORITY)
- blog.php:
* Main blog list query - Hardcoded 'published' status
- course_details.php:
* Driver training courses query - Hardcoded course type
- driver_training.php:
* Future driver training dates query - Hardcoded course type
- events.php:
* Upcoming events query - Hardcoded date comparison
- index.php:
* Featured trips query - Hardcoded published status
All queries now use proper parameter binding via prepared statements.
Next: Convert remaining 15+ safe hardcoded queries for consistency.
- index.php: Changed from header01.php to new unified header.php with dark style
- about.php: Changed from header02.php to new unified header.php with light style
- Both pages now use single configurable header template
- Eliminates dependency on separate header files
Test these pages in browser to verify header renders correctly before updating remaining pages
