php获取浏览器客户端操作系统IP地址类-PHP源码

class Client{

public function __construct()
{
/**/
}

/**
* 获取浏览器客户端
*
* @return string
*/
public function browser()
{
$info = $_SERVER['HTTP_USER_AGENT'];
if(strstr($info,'MSIE 6.0') != false){
return 'IE6';
}elseif (strstr($info,'MSIE 7.0') != false){
return 'IE7';
}elseif (strstr($info,'Firefox') != false){
return 'Firefox';
}elseif (strstr($info,'Chrome') != false){
return 'Chrome';
}elseif (strstr($info,'Safari') != false){
return 'Safari';
}else{
return 'unknow';
}
}

/**
* 获取操作系统
* @return string
*/
public function getOS ()
{
$agent = $_SERVER['HTTP_USER_AGENT'];
$os = false;
if (eregi('win', $agent) && strpos($agent, '95')){
$os = 'Windows 95';
}
else if (eregi('win 9x', $agent) && strpos($agent, '4.90')){
$os = 'Windows ME';
}
else if (eregi('win', $agent) && ereg('98', $agent)){
$os = 'Windows 98';
}
else if (eregi('win', $agent) && eregi('nt 5.1', $agent)){
$os = 'Windows XP';
}
else if (eregi('win', $agent) && eregi('nt 5', $agent)){
$os = 'Windows 2000';
}
else if (eregi('win', $agent) && eregi('nt', $agent)){
$os = 'Windows NT';
}
else if (eregi('win', $agent) && ereg('32', $agent)){
$os = 'Windows 32';
}
else if (eregi('linux', $agent)){
$os = 'Linux';
}
else if (eregi('unix', $agent)){
$os = 'Unix';
}
else if (eregi('sun', $agent) && eregi('os', $agent)){
$os = 'SunOS';
}
else if (eregi('ibm', $agent) && eregi('os', $agent)){
$os = 'IBM OS/2';
}
else if (eregi('Mac', $agent) && eregi('PC', $agent)){
$os = 'Macintosh';
}
else if (eregi('PowerPC', $agent)){
$os = 'PowerPC';
}
else if (eregi('AIX', $agent)){
$os = 'AIX';
}
else if (eregi('HPUX', $agent)){
$os = 'HPUX';
}
else if (eregi('NetBSD', $agent)){
$os = 'NetBSD';
}
else if (eregi('BSD', $agent)){
$os = 'BSD';
}
else if (ereg('OSF1', $agent)){
$os = 'OSF1';
}
else if (ereg('IRIX', $agent)){
$os = 'IRIX';
}
else if (eregi('FreeBSD', $agent)){
$os = 'FreeBSD';
}
else if (eregi('teleport', $agent)){
$os = 'teleport';
}
else if (eregi('flashget', $agent)){
$os = 'flashget';
}
else if (eregi('webzip', $agent)){
$os = 'webzip';
}
else if (eregi('offline', $agent)){
$os = 'offline';
}
else {
$os = 'Unknown';
}
return $os;
}

/**
* 获取IP地址
* @return string
*/
public function getIp()
{
if (getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown")){
$ip = getenv("HTTP_CLIENT_IP");
}elseif (getenv("HTTP_X_FORWARDED_FOR") && strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown")){
$ip = getenv("HTTP_X_FORWARDED_FOR");
}elseif (getenv("REMOTE_ADDR") && strcasecmp(getenv("REMOTE_ADDR"), "unknown")){
$ip = getenv("REMOTE_ADDR");
}elseif (isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], "unknown")) {
$ip = $_SERVER['REMOTE_ADDR'];
}else{
$ip = "unknown";
}
return($ip);
}
}