php $_SERVER variable content :
HTTP_HOST => www.colliard.net
HTTP_ACCEPT_ENCODING => x-gzip, gzip, deflate
HTTP_USER_AGENT => CCBot/2.0
HTTP_ACCEPT_LANGUAGE => en-us,en-gb,en;q=0.7,*;q=0.3
HTTP_ACCEPT => text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
REMOTE_ADDR => 107.22.156.205
REMOTE_PORT => 34850
GATEWAY_INTERFACE => CGI/1.1
REQUEST_METHOD => GET
QUERY_STRING => 
REQUEST_URI => /index.php
PHP_SELF => /index.php
REQUEST_TIME => 1369002721 (epoch time) aka 2013-05-20T00:32:01+02:00 Europe/Zurich CEST (equiv. local swiss time)