Кхм я про заголовки спрашиваю, какие есть кроме этих
REMOTE_ADDR
HTTP_X_FORWARDED_FOR

Accept
Accept-Charset
Accept-Encoding
Accept-Language
Accept-Ranges
Age
Allow
Authorization
Cache-Control
Connection
Content-Base
Content-Disposition
Content-Encoding
Content-Language
Content-Length
Content-Location
Content-MD5
Content-Range
Content-Type
Cookie
Date
ETag
Expires
From
Host
If-Match
If-Modified-Since
If-None-Match
If-Range
Last-Modified
Link
Location
Max-Forwards
Mime-Version
Pragma
Proxy-Authenticate
Proxy-Authentication-Info
Proxy-Authorization
Proxy-Connection
Proxy-support
Public
Range
Referer
Request-Range
Retry-After
Server
Set-Cookie
Transfer-Encoding
Te
Trailer
Upgrade
User-Agent
Vary
Via
Expect
Warning
WWW-Authenticate
Authentication-Info
X-Cache
X-Cache-Lookup
X-Forwarded-For
X-Request-URI
X-Squid-Error
X-HTTP09-First-Line
Negotiate
X-Accelerator-Vary
X-Error-URL
X-Error-Status
Front-End-Https
Keep-Alive
Other: