PHP Web Development Lecture 10
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Questions and Answers

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

  • Predefined Variables
  • Superglobals (correct)
  • Global Variables
  • Accessible Variables
  • Which PHP superglobal variable is used to retrieve information from forms, like user input?

  • $_GET and $_POST (correct)
  • $_ENV
  • $_SERVER
  • $_REQUEST
  • What is the most important thing to notice when dealing with HTML forms and PHP?

  • HTML forms cannot be used with PHP
  • Any form element in an HTML page will automatically be available to your PHP scripts (correct)
  • PHP scripts must be used in HTML forms
  • Form elements must be explicitly defined in PHP
  • What is the purpose of PHP form validation?

    <p>To ensure that user input conforms to certain rules or patterns</p> Signup and view all the answers

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

    <p>$_COOKIE</p> Signup and view all the answers

    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.

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    Description

    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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