Request / Requirements
Create a website using HTML, CSS, PHP with MySQL. Basic requirements:
- Homepage (index.php): registration, authentication using PHP and MySQL, button to access admin panel for administrator
- Contact page: feedback form — information from the form is sent to the site administrator's email
- Reviews page: form for reviews, user message is immediately displayed on the page
- Admin panel: accessible only to admin, all database tables are displayed on the page with the ability to add, delete, and edit data
Development Process
Stage 1: Design and Structure (1 day)
Started with website architecture design:
- Designed database structure (MySQL) for storing contacts, reviews, and users
- Created database schema with tables: contacts, reviews, users
- Developed modular PHP structure with separation into config, includes, handlers
- Planned session system for authentication
Stage 2: Homepage Development with Authentication (1.5 days)
Created homepage with registration and authentication system (basic task):
- Implemented hero section with car dealership information
- Added benefits section with service cards
- Created "About Us" section with information
- Integrated navigation menu with active links
- Implemented user registration system (username, email, password)
- Added authentication system with MySQL verification
- Created users table in database
- Implemented password hashing via password_hash() (not in requirements)
- Added admin panel access button for administrator
- Created session system for storing authentication state
Stage 3: Contact Form (1 day)
Developed contact form with email sending (basic task):
- Created contact.php page with form (email, phone, subject, message)
- Implemented process.php handler for saving data to database
- Created contacts table in database
- Added server-side field validation
- Configured email notifications to site administrator's email (basic task)
- Implemented error handling system with redirects
- Added email sending error logging (not in requirements)
Stage 4: Reviews System (1 day)
Implemented reviews system with instant display (basic task):
- Created reviews.php page for displaying reviews
- Implemented review form with rating (1-5 stars)
- Created reviews table in database
- Implemented instant display of user message on page (basic task)
- Added review moderation system (approved/not approved) for admin panel (not in requirements)
- Implemented review sorting by date (newest first)
- Created visual star rating display
Stage 5: Admin Panel (1.5 days)
Developed management panel with full CRUD (basic task):
- Created admin.php page with login system (accessible only to admin)
- Implemented admin panel protection through session verification (basic task)
- Added display of all database tables on page (contacts, reviews, users)
- Implemented ability to add data to all tables (basic task)
- Created ability to delete data from all tables (basic task)
- Added ability to edit data in all tables (basic task)
- Implemented convenient interface for content management
- Added review moderation system (approve/reject) (not in requirements)
Stage 6: Additional Improvements (0.5 days)
Added features that were not in requirements:
- Implemented centralized configuration system via config.php
- Created modular function system in data.php for database work
- Added database connection error handling with clear messages
- Implemented SQL injection protection through prepared statements (PDO)
- Added HTML escaping via htmlspecialchars() for security
- Created email sending error logging system
- Optimized code for function reuse
- Added responsive design for mobile devices (not in requirements)
Final Result
The website is successfully launched and fully functional:
Implemented Features
- ✅ Homepage (index.php): Registration, authentication using PHP and MySQL, button to access admin panel
- ✅ Contact Form: Information from form is sent to site administrator's email
- ✅ Reviews Page: Form for reviews, user message is immediately displayed on page
- ✅ Admin Panel: Accessible only to admin, all database tables are displayed with ability to add, delete, and edit data
- ✅ Additionally: Review moderation system, SQL injection protection, responsive design
Technical Achievements
- Secure database work through PDO and prepared statements
- Password hashing for user data protection
- Session system for authentication management
- Modular architecture with separation of concerns
- Centralized configuration for easy management
- Error handling with clear messages
Solution Advantages
- Security: Protection against SQL injections and XSS attacks
- Convenience: Admin panel for content management without code changes
- Functionality: Full user and moderation system
- Performance: Optimized database queries
- Scalability: Modular structure for easy expansion
Technical Details
Architecture
- Backend: PHP 8+ using PDO for MySQL work
- Database: MySQL with tables contacts, reviews, users
- Frontend: HTML5, CSS3, vanilla JavaScript
- Security: Prepared statements, password hashing, session management
- Email: Built-in mail() function with SMTP settings support
Implementation Features
- Modularity: Separation into config, includes, handlers
- Security: Validation and escaping of all user data
- UX: Clear error and success messages
- Administration: Convenient panel for content management
- Responsiveness: Mobile-first approach to layout
Database Structure
- contacts: Storage of messages from contact form
- reviews: Client reviews with rating and moderation status
- users: Registered users with hashed passwords
Results
Achieved Goals
✅ All basic tasks completed
✅ Added features that were not in requirements (registration, admin panel, moderation)
✅ Website fully adapted for mobile devices
✅ Secure data handling implemented
✅ Convenient content management system created
Solution Advantages
- Flexibility: Easy to add new features thanks to modular structure
- Security: Multi-level protection against attacks and data leaks
- Convenience: Admin panel allows managing website without programming
- Performance: Optimized database queries
- Scalability: Ready foundation for expanding functionality
Application
Perfect for:
- Car dealership and dealer center landing pages
- Service websites with contact forms
- Projects requiring review systems
- Websites needing admin panels
- Quick development of functional landing pages
Conclusion
The project significantly exceeded initial requirements. In addition to the basic landing page, I added a user registration system, a full admin panel for content management, a review moderation system, and automatic email notifications. The website is ready for use and can be easily extended with additional features such as a car catalog or booking system.
All data is securely stored in MySQL, and the modular code structure allows for easy maintenance and development.
