PHP获取用户操作系统、浏览器、ip信息

小雨点点789

<?php
// --------------------------------------------------
// 分析返回用户操作系统名称
// --------------------------------------------------
function getSystem(){
$sys = $_SERVER['HTTP_USER_AGENT'];
if(stripos($sys, "NT 6.1"))
$os = "Windows 7";
elseif(stripos($sys, "NT 6.0"))
$os = "Windows Vista";
elseif(stripos($sys, "NT 5.1"))
$os = "Windows XP";
elseif(stripos($sys, "NT 5.2"))
$os = "Windows Server 2003";
elseif(stripos($sys, "NT 5"))
$os = "Windows 2000";
elseif(stripos($sys, "NT 4.9"))
$os = "Windows ME";
elseif(stripos($sys, "NT 4"))
$os = "Windows NT 4.0";
elseif(stripos($sys, "98"))
$os = "Windows 98";
elseif(stripos($sys, "95"))
$os = "Windows 95";
elseif(stripos($sys, "Mac"))
$os = "Mac";
elseif(stripos($sys, "Linux"))
$os = "Linux";
elseif(stripos($sys, "Unix"))
$os = "Unix";
elseif(stripos($sys, "FreeBSD"))
$os = "FreeBSD";
elseif(stripos($sys, "SunOS"))
$os = "SunOS";
elseif(stripos($sys, "BeOS"))
$os = "BeOS";
elseif(stripos($sys, "OS/2"))
$os = "OS/2";
elseif(stripos($sys, "PC"))
$os = "Macintosh";
elseif(stripos($sys, "AIX"))
$os = "AIX";
else
$os = "未知操作系统";
return $os;
}
// --------------------------------------------------
// 分析返回用户网页浏览器名称
// --------------------------------------------------
function getBrowser(){
$browser = $_SERVER['HTTP_USER_AGENT'];
if(strpos(strtolower($browser),"netcaptor"))
$exp = "NetCaptor";
elseif(strpos(strtolower($browser),"firefox")){
preg_match("/Firefox\/([^;)]+)+/i", $sys, $b);
$exp = "Mozilla Firefox ".$b[1];
}elseif(strpos(strtolower($browser),"maxthon")){
preg_match("/MAXTHON\s+([^;)]+)+/i", $sys, $b);
preg_match("/MSIE\s+([^;)]+)+/i", $sys, $ie);
$exp = $b[0]." (IE".$ie[1].")";
}elseif(strpos(strtolower($browser),"msie")){
preg_match("/MSIE\s+([^;)]+)+/i", $sys, $ie);
$exp = "Internet Explorer ".$ie[1];
}elseif(strpos(strtolower($browser),"netscape"))
$exp = "Netscape";
elseif(strpos(strtolower($browser),"opera"))
$exp = "Opera";
else
$exp = "未知浏览器";
return $exp;
}
// --------------------------------------------------
// 分析返回用户ip
// --------------------------------------------------
function getIp(){
$ip = '';
if ($_SERVER["HTTP_X_FORWARDED_FOR"]){
$ip = $_SERVER["HTTP_X_FORWARDED_FOR"];
}elseif ($_SERVER["HTTP_CLIENT_IP"]){
$ip = $_SERVER["HTTP_CLIENT_IP"];
}elseif ($_SERVER["REMOTE_ADDR"]){
$ip = $_SERVER["REMOTE_ADDR"];
}elseif (getenv("HTTP_X_FORWARDED_FOR")){
$ip = getenv("HTTP_X_FORWARDED_FOR");
}elseif (getenv("HTTP_CLIENT_IP")){
$ip = getenv("HTTP_CLIENT_IP");
}elseif (getenv("REMOTE_ADDR")){
$ip = getenv("REMOTE_ADDR");
}else{
$ip = "unknown";
}
return $ip;
}
?>