Скачать или смотреть Creating Nested Master = Detail Records in PHP and MySQL with HTML5

Learn how to retrieve and display nested data structures in PHP and MySQL using HTML5 without JavaScript. A detailed guide on multi-level records for optimal display.
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How to Retrieve Nested Master = Detail Records in PHP and MySQL

When developing applications that handle data from a database, it's common to encounter master-detail relationships. This consists of a main category (master) and its subcategories (details). In this guide, we will explore how to create a master => detail structure in PHP and MySQL using pure HTML5 without the aid of JavaScript. This setup can be particularly useful for displaying hierarchical data like courses under a program, or software modules within a particular software application.

Understanding the Problem

The typical challenge that arises is how to effectively display nested data. For example, you might want to display training programs offered by companies, such as:

Adobe:

Photoshop: Beginner, Advanced

Illustrator: Basic

Microsoft:

Word: Basic, Advanced

Excel: Basic

To implement this in a web application using PHP and MySQL, while adhering to design and usability standards, we can leverage the HTML5 <details> and <summary> elements. These elements allow us to create collapsible sections, perfect for our purpose.

Solution: Step-by-Step Guide

Here we will use PHP to create a dynamic site that retrieves these records from a MySQL database and displays them using HTML5 elements that enhance user experience without JavaScript.

1. Setting Up Your HTML Structure

To begin, structure the HTML with the necessary CSS for styling. Here’s a basic example:

[[See Video to Reveal this Text or Code Snippet]]

2. Using <details> and <summary> Tags

Here’s how we can use these tags to display the courses:

[[See Video to Reveal this Text or Code Snippet]]

3. Dynamically Generating Content with PHP

To make your application dynamic, you can fetch data from your MySQL database and then loop through it to generate this structure. Here’s an example of how you might do this:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

Using the combination of PHP to fetch data and HTML5 <details> and <summary> tags allows you to present data in a clear, interactive manner without needing JavaScript. This method not only enhances readability but also provides a user-friendly experience by allowing users to expand details when needed.

Now that you have the insights to display nested data structures, feel free to customize this example according to your database needs. By utilizing master-detail relationships, you can take your PHP and MySQL skills to the next level!