HEADER-DETAIL FORM WITH VANILLA JAVASCRIPT AND PHP/API WITH MYSQL DATABASE

Code URL: https://programming-4-students.blogspot.com/2025/08/working-with-header-detail-form-in.html

Header–Detail Form with Transaction Control (JS + PHP + MySQL)
In this tutorial, we’ll build a dynamic Header–Detail Form using JavaScript, PHP, and MySQL, ideal for invoice systems, order forms, and real-time data entry projects. But wait—this isn’t just about saving data. We’re going full pro mode with transaction control using beginTransaction(), commit(), and rollBack() to ensure data integrity across multiple tables.

👨‍🏫 What you’ll learn:
Structuring header and detail sections in HTML
Capturing multiple product entries with JavaScript
Saving to tbl_invoice_header and tbl_invoice_details using PHP
Using beginTransaction() to start a safe insert session
Committing successful inserts with commit()
Rolling back on error with rollBack() to avoid partial saves

💡 Perfect for students, educators, and devs who want to understand modular form architecture with real-world database safety. If you’ve ever had a student ask, “Sir, what if na-save ang header pero walay details?”—this video answers that.