Click on one of the server variables to view its description and an example:
AUTH_TYPEDOCUMENT_ROOT
GATEWAY_INTERFACE
PATH_TRANSLATE
PHP_AUTH_PW
PHP_AUTH_USER
PHP_SELF
QUERY_STRING
The query string, if there was any, with which the page was accessed.
eg.
REMOTE_ADDR
REMOTE_HOST
REMOTE_PORT
REQUEST_METHOD
REQUEST_URI
SCRIPT_FILENAME
SCRIPT_NAME
SERVER_ADMIN
SERVER_NAME
SERVER_PORT
SERVER_PROTOCOL
SERVER_SIGNATURE
SERVER_SOFTWARE
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