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