PHP Forms

What are Forms?

Forms are used to collect data from users.

PHP processes form data using $_GET and $_POST.

Basic HTML Form

The name Attribute

The name attribute is required to access form data in PHP.

Using $_POST

Used when the form method is post.

Using $_GET

Used when the form method is get.

GET vs POST

• GET → visible in URL
• POST → hidden and more secure
• POST is used for forms

Handling Form Submission

Full Example

Basic Validation

Why Forms are Important

• Collect user input
• Used in login and signup
• Send data to servers

Common Mistakes

• Forgetting the name attribute
• Accessing $_POST without checking request method
• Using GET for sensitive data

Practice

Create a form that asks for a name and prints it using PHP.

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