PHP Web Development Lecture 10

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5 Questions

What is the term used to describe certain predefined variables in PHP that are always accessible, regardless of scope?

Superglobals

Which PHP superglobal variable is used to retrieve information from forms, like user input?

$_GET and $_POST

What is the most important thing to notice when dealing with HTML forms and PHP?

Any form element in an HTML page will automatically be available to your PHP scripts

What is the purpose of PHP form validation?

To ensure that user input conforms to certain rules or patterns

Which of the following PHP superglobal variables is NOT used to collect form-data?

$_COOKIE

Study Notes

PHP Superglobals

  • Superglobals are predefined variables in PHP that are always accessible, regardless of scope.
  • They can be accessed from any function, class, or file without needing special actions.

PHP Superglobal Variables

  • $_GLOBALS
  • $_SERVER
  • $_REQUEST
  • $_POST
  • $_GET
  • $_FILES
  • $_ENV
  • $_COOKIE
  • $_SESSION

PHP Forms and User Input

  • PHP $_GET and $_POST variables are used to retrieve information from forms, such as user input.
  • Any form element in an HTML page is automatically available to PHP scripts.

PHP Form Handling

  • PHP superglobals $_GET and $_POST are used to collect form-data.

This quiz covers PHP forms and user input, including the $_GET and $_POST methods, PHP form validation, and superglobal variables in PHP.

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