Kullanici bilgilerini yada server bilgilerini çekerken lazım olur ;
$REQUEST_METHOD;
$QUERY_STRING;
$PATH_INFO;
$PATH_TRANSLATED;
$CONTENT_TYPE;
$CONTENT_LENGTH;
$SCRIPT_NAME;
$SERVER_NAME;
$SERVER_PORT;
$SERVER_SOFTWARE;
$SERVER_PROTOCOL;
$SERVER_ADMIN;
$SERVER_SIGNATURE;
$GATEWAY_INTERFACE;
$REMOTE_HOST;
$REMOTE_ADDR;
$REMOTE_PORT;
$AUTH_TYPE;
$REMOTE_USER;
$REMOTE_IDENT;
$DOCUMENT_ROOT;
$HTTP_ACCEPT;
$HTTP_ACCEPT_CHARSET;
$HTTP_ACCEPT_ENCODING;
$HTTP_ACCEPT_LANGUAGE;
$HTTP_CONNECTION;
$HTTP_HOST;
$HTTP_REFERER;
$HTTP_USER_AGENT;
$SCRIPT_FILENAME;
$REQUEST_URI;
