The project is a web-based Car Rental Management System developed to manage user accounts, vehicle records, and booking operations through an integrated database system. This type of work falls under full-stack web development and database management, where both backend server logic and frontend user interface are implemented. The system allows users to register securely, search for available cars, and book vehicles within selected dates, while administrators can add and manage car records. The main features include secure user registration with email validation, prevention of SQL injection through input sanitization, dynamic car search based on model and availability status, booking management with date filtering, and data retrieval using relational database queries such as SELECT, INSERT, and INNER JOIN. The system also returns data in JSON format for dynamic updates and uses form validation to ensure accurate input handling. The work is carried out by connecting the PHP backend to a MySQL database hosted locally using XAMPP, executing structured queries to store and retrieve data, and designing a responsive user interface using HTML and CSS. Overall, the project demonstrates database design, server-side scripting, query optimization, and user interface implementation within a structured web application environment.