PHP Predefined Variables
by Ranganathan[ Edit ] 2012-08-28 18:54:44
* Superglobals â Superglobals are built-in variables that are always available in all scopes
* $GLOBALS â References all variables available in global scope
* $_SERVER â Server and execution environment information
* $_GET â HTTP GET variables
* $_POST â HTTP POST variables
* $_FILES â HTTP File Upload variables
* $_REQUEST â HTTP Request variables
* $_SESSION â Session variables
* $_ENV â Environment variables
* $_COOKIE â HTTP Cookies
* $php_errormsg â The previous error message
* $HTTP_RAW_POST_DATA â Raw POST data
* $http_response_header â HTTP response headers
* $argc â The number of arguments passed to script
* $argv â Array of arguments passed to script
