This script is designed to demonstrate a complete workflow for connecting to a database, fetching records, processing user input, and returning a formatted response. It includes data validation, sanitization, and error handling to ensure stability and security. The code structure follows a logical flow: configuration loading, session management,

This script is designed to demonstrate a complete workflow for connecting to a database, fetching records, processing user input, and returning a formatted response. It includes data validation, sanitization, and error handling to ensure stability and security. The code structure follows a logical flow: configuration loading, session management,