What are the commonly used superglobal variables in PHP?

The commonly used superglobal variables in php are: 1. "$GLOBALS"; 2. "$_SERVER"; 3. "$_GET"; 4. "$_POST"; 5. "$_FILES"; 6 , "$_COOKIE"; 7. "$_SESSION"; 8. "$_REQUEST".

Superglobal variables were introduced in PHP 4.1.0 and are built-in variables that are always available in all scopes.

Commonly used super global variables in php

Super global variables: $GLOBALS, $_SERVER, $_GET, $_POST, $_FILES, $_COOKIE, $ _SESSION, $_REQUEST, $_ENV.

Many predefined variables in PHP are "superglobal", which means they are available throughout the entire scope of a script. They can be accessed within a function or method without executing global $variable;.

Please check the relevant manual content of super global variables for details: https://www.php.cn/php/php-superglobals.html

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