Which of the following are true about superglobals in PHP?

  • Superglobals are accessible from any part of the script.
  • Superglobals are limited to specific scopes within a script.
  • Superglobals can be modified by the developer.
  • Superglobals are not predefined by PHP.
The correct option is 1. Superglobals in PHP, such as $_POST, $_GET, and $_SERVER, are accessible from any part of the script, including both within and outside functions. They are automatically available in all scopes and can be accessed globally without the need for special considerations or modifications. Superglobals are predefined variables in PHP that provide important information and resources, allowing developers to access and manipulate data related to HTTP requests, server environment, and more. It is important to note that superglobals cannot be modified directly by the developer; they are populated by PHP based on the incoming request or server configuration. Learn more: https://www.php.net/manual/en/language.variables.superglobals.php
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