server_software = <br> 
gateway_interface = <br> 
document-root = <br> 
remote-addr = <br> 
server-protocol = <br> 
request_method = <br> 
remote_host = <br> 
http_referer = <br> 
query_string = <br> 
http_user_agent = <br> 
path = <br> 
http_accept = <br> 
remote_port = <br> 
http_accept_language = <br> 
script_name = <br> 
script_filename<br> 
http_pragma = <br> 
server_name = <br> 
request_uri = <br> 
http_accept_charset = <br> 
server_port = <br> 
http_host = <br> 
server_admin = <br>