juniorPHP
What is the difference between GET and POST in PHP?
Updated May 24, 2026
Short answer
GET sends data in the URL, while POST sends data in the request body.
Deep explanation
GET requests are cacheable and suitable for retrieving data. POST requests are more secure for sensitive information and support larger payloads. PHP accesses them through $_GET and $_POST superglobals.
Real-world example
Login forms use POST to prevent credentials from appearing in URLs.
Common mistakes
- Trusting user input without validation or sanitization.
Follow-up questions
- Can GET requests modify data?
- What is request validation?