Product Management System

A PHP OOP learning project demonstrating:

• Abstract classes and inheritance
• Polymorphism (no if-else for product types)
• PSR-4 autoloading
• PDO database operations
• MVC-like architecture

Tech Stack

• PHP 8.2
• MySQL/MariaDB
• HTML/CSS/JavaScript (Vanilla)

Product Types

Type	Special Attribute
DVD	Size (MB)
Book	Weight (KG)
Furniture	Dimensions (HxWxL cm)

Project Structure

product-management/
├── public/
│   └── index.php          # Entry point & router
├── src/
│   ├── Database/          # Database connection (Singleton)
│   ├── Model/             # Product classes (Abstract + Inheritance)
│   ├── Repository/        # Database operations
│   └── View/              # HTML templates
├── config/                # Configuration files
├── css/                   # Stylesheets
├── js/                    # JavaScript
└── database/              # SQL schema

Setup

Prerequisites

• PHP 7.4+ (8.0+ recommended)
• MySQL 5.7+ or MariaDB
• Composer
• Apache with mod_rewrite

Installation

1. Clone the repository

git clone https://github.com/ertancurr1/product-management.git
cd product-management

2. Install dependencies

composer install

3. Create database and import schema

mysql -u root -p < database/schema.sql

Or import database/schema.sql via phpMyAdmin.

4. Configure database connection

Edit config/database.php with your credentials:

return [
    'host' => 'localhost',
    'dbname' => 'product_management',
    'username' => 'root',
    'password' => '',
    'charset' => 'utf8mb4'
];

5. Start your web server and visit:

http://localhost/product-management/public/

Features

• ✅ Add products (DVD, Book, Furniture)
• ✅ View all products in grid layout
• ✅ Mass delete with checkboxes
• ✅ Form validation (client + server side)
• ✅ Dynamic type-specific fields
• ✅ SKU uniqueness validation

OOP Concepts Demonstrated

Concept	Implementation
Abstract Class	Product base class
Inheritance	DVD, Book, Furniture extend Product
Polymorphism	getSpecificAttribute() method
Encapsulation	Private properties with getters/setters
Singleton	Database connection class

Author

Ertan Curri

• Portfolio: ertancurri.com
• GitHub: @ertancurr1
• LinkedIn: Ertan Curri

License

This project is open source and available for learning purposes.