$ PHP_SELF

Question 1

What is $_SERVER[‘PHP_SELF’]?

Answer 1

$_SERVER[‘PHP_SELF’] is a superglobal variable in PHP that returns the filename of the currently executing script.

Question 2

How is $_PHP_SELF commonly used in PHP?

Answer 2

It is often used in the action attribute of HTML forms to submit the form data to the same page for processing, allowing for data validation and handling.

Question 3

How does $_SERVER[‘PHP_SELF’] facilitate form submissions?

Answer 3

By setting the form’s action to $_SERVER[‘PHP_SELF’], you can submit the form data to the same page that is currently being viewed.

Form Action def.

Question 4

Dynamic URL Handling def.

Answer 4

It allows you to create dynamic URLs that can adapt based on the current script.

Question 5

What does $_SERVER[‘PHP_SELF’] enable scripts to do?

Answer 5

It enables scripts to process their own input.

Self-Processing Scripts def.

Question 6

Fill in the blank: $_SERVER[‘PHP_SELF’] is particularly useful in web applications for handling _______.

Answer 6

form submissions

Question 7

Key Purposes of of $ PHP_SELF?

Answer 7

1. Form Action
2. Dynamic URL Handling
3. Self-Processing Scripts

Question 8

What is a security consideration when using $_PHP_SELF?

Answer 8

When using $_PHP_SELF, it is important to apply htmlspecialchars() to prevent Cross-Site Scripting (XSS) attacks by escaping special charactersin the URL.