Query by providing the user agent:

look at http://www.useragentstring.com/pages/useragentstring.php or http://www.user-agents.org/

For mobile, look at http://en.wikipedia.org/wiki/List_of_user_agents_for_mobile_phones

Sequence : (DON'T FORGET TO CLEAN SESSION COOKIE)
User Agent :
General informations
no WURFL identification
Full
array(23) {
  ["browser_compatibility"] => string(6) "Safari"
  ["browser_engine"] => string(11) "AppleWebKit"
  ["browser_name"] => string(11) "AppleWebKit"
  ["browser_version"] => string(3) "2.0"
  ["others"] => array(2) {
    ["full"] => string(91) "AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
    ["detail"] => array(1) {
      [0] => array(3) {
        [0] => string(91) "AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
        [1] => string(11) "AppleWebKit"
        [2] => string(6) "537.36"
      }
    }
  }
  ["product_name"] => string(7) "Mozilla"
  ["product_version"] => string(3) "5.0"
  ["user_agent"] => string(11) "Mozilla/5.0"
  ["is_wireless_device"] => bool(false)
  ["is_mobile"] => bool(false)
  ["is_desktop"] => bool(true)
  ["is_tablet"] => bool(false)
  ["is_bot"] => bool(false)
  ["is_email"] => bool(false)
  ["is_text"] => bool(false)
  ["device_claims_web_support"] => bool(false)
  ["client_ip"] => string(12) "216.73.216.3"
  ["php_version"] => string(6) "5.4.16"
  ["server_os"] => string(6) "apache"
  ["server_os_version"] => string(5) "2.4.6"
  ["server_http_accept"] => string(3) "*/*"
  ["server_ip"] => string(13) "192.168.16.15"
  ["server_name"] => string(14) "153.150.249.49"
}