Form Handling: $_GET and $_POST Superglobals

By Ratan Updated: 16 Oct 2026

Process web form submissions securely using $_GET and $_POST superglobal arrays.

Level: Beginner to Advanced

Duration: ~60 Mins Deep-Dive

1. Understanding HTTP Methods: GET vs POST

Web applications exchange form data with the backend server via HTTP requests:

GET Method: Form data is appended directly to the URL query string (e.g., page.php?search=neet&page=2). GET requests are bookmarkable and cached, but expose data in browser history. Never send passwords or private data via GET.
POST Method: Form data is packaged inside the HTTP request body. POST supports binary file uploads, large payloads, and hides parameters from the browser address bar.

2. The `$_SERVER["REQUEST_METHOD"]` Check

Before reading submitted data, verify if the page was requested via POST to avoid undefined index warnings:



3. Building a Working Contact Form in PHP




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                                     Array Functions: count, array_merge, array_map, in_array                                
                            
                                                            
                                    Form Validation and Input Sanitization

PHP Tutorial

Form Handling: $_GET and $_POST Superglobals

1. Understanding HTTP Methods: GET vs POST

2. The `$_SERVER["REQUEST_METHOD"]` Check

3. Building a Working Contact Form in PHP

📝 Live Lesson Practice

OnlineCBT

Useful Link

Important Pages

Courses & Practice

Contact

Share

PHP Tutorial

Form Handling: $_GET and $_POST Superglobals

1. Understanding HTTP Methods: GET vs POST

2. The $_SERVER["REQUEST_METHOD"] Check

3. Building a Working Contact Form in PHP

📝 Live Lesson Practice

OnlineCBT

Useful Link

Important Pages

Courses & Practice

Contact

Share

2. The `$_SERVER["REQUEST_METHOD"]` Check