Predefined Variables ■Superglobals — Superglobals are built-in variables that are always available in all scopes ■$GLOBALS — References all variables available in global scope ■$_SERVER — Server and execution environment information ■$_GET — HTTP GET variables ■$_POST — HTTP POST variables ■$_FILES — HTTP File Upload variables ■$_REQUEST — HTTP Request variables ■$_SESSION — Session variables ■$_ENV — Environment variables ■$_COOKIE — HTTP Cookies ■$php_errormsg — The previous error message ■$HTTP_RAW_POST_DATA — Raw POST data ■$http_response_header — HTTP response headers ■$argc — The number of arguments passed to script ■$argv — Array of arguments passed to scriptSuperglobals ■$GLOBALS ■$_SERVER ■$_GET ■$_POST ■$_FILES ■$_COOKIE ■$_SESSION ■$_REQUEST ■$_ENV全局变量难道还要解释么?
■Superglobals — Superglobals are built-in variables that are always available in all scopes
■$GLOBALS — References all variables available in global scope
■$_SERVER — Server and execution environment information
■$_GET — HTTP GET variables
■$_POST — HTTP POST variables
■$_FILES — HTTP File Upload variables
■$_REQUEST — HTTP Request variables
■$_SESSION — Session variables
■$_ENV — Environment variables
■$_COOKIE — HTTP Cookies
■$php_errormsg — The previous error message
■$HTTP_RAW_POST_DATA — Raw POST data
■$http_response_header — HTTP response headers
■$argc — The number of arguments passed to script
■$argv — Array of arguments passed to scriptSuperglobals
■$GLOBALS
■$_SERVER
■$_GET
■$_POST
■$_FILES
■$_COOKIE
■$_SESSION
■$_REQUEST
■$_ENV全局变量难道还要解释么?