GATEWAY_INTERFACE=
SERVER_SOFTWARE=
SERVER_NAME=
SERVER_PROTOCOL=
SERVER_PORT=
HTTP_USER_AGENT=
HTTP_ACCEPT=
REMOTE_HOST=
REMOTE_ADDR=
REMOTE_USER=
REMOTE_IDENT=
REQUEST_METHOD=
SCRIPT_NAME=
QUERY_STRING=
PATH_INFO=
PATH_TRANSLATED=
AUTH_TYPE=
Se llena si el pedido es POST: CONTENT_TYPE=
Se llena si el pedido es POST: CONTENT_LENGTH=