Final Answer:
Creating an online Airline reservation system using PHP involves developing a database structure, including an Entity-Relationship Diagram (ERD), Relational Schema, and the code for database creation. It encompasses tables for flights, customers, reservations, and more, with PHP scripts facilitating user interaction and data processing.
Step-by-step explanation:
Designing an online Airline reservation system necessitates a structured database. The Entity-Relationship Diagram (ERD) illustrates the relationships between entities like flights, customers, reservations, etc. For instance, the flights table may contain attributes like flight number, departure, arrival, and available seats, linked to the customers table through reservation IDs. The Relational Schema outlines these tables' attributes, primary keys, and foreign keys, providing a blueprint for database creation.
Constructing the database involves translating the ERD and Relational Schema into SQL code. Using CREATE TABLE statements in PHP, one defines tables and their respective attributes, along with their relationships using foreign keys. The PHP code also handles interactions with users, enabling functions like booking flights, displaying available options, and managing reservations. It incorporates SQL queries to retrieve, insert, update, and delete data, ensuring seamless user experiences while maintaining data integrity.
Balancing the database structure, optimizing queries for efficient data retrieval, and implementing secure PHP scripts are crucial aspects of developing a robust online Airline reservation system. Properly structured tables and well-designed PHP scripts ensure smooth functionality, allowing users to browse available flights, make reservations, and manage bookings effectively.