PHP code to obtain the client IP address, geographical information, browser information, and local real IP

 // Function to get the client’s IP, geographical information, and browser
 class get_gust_info {
 ////Get the visitor’s browser type
 function GetBrowser(){
 if(!empty($ _SERVER['HTTP_USER_AGENT'])){
 $br = $_SERVER['HTTP_USER_AGENT'];
 if (preg_match('/MSIE/i',$br)) {
 $br = 'MSIE';
 }elseif ( preg_match('/Firefox/i',$br)) {
 $br = 'Firefox';
 }elseif (preg_match('/Chrome/i',$br)) {
 $br = 'Chrome';
 } elseif (preg_match('/Safari/i',$br)) {
 $br = 'Safari';
 }elseif (preg_match('/Opera/i',$br)) {
 $br = 'Opera';
 }else {
 $br = 'Other';
 }
 return $br;
 }else{return "Failed to obtain browser information!";}
 }

 ////Get visitor browser language
 function GetLang (){
 if(!empty($_SERVER['HTTP_ACCEPT_LANGUAGE'])){
 $lang = $_SERVER['HTTP_ACCEPT_LANGUAGE'];
 $lang = substr($lang,0,5);
 if(preg_match( "/zh-cn/i",$lang)){
 $lang = "Simplified Chinese";
 }elseif(preg_match("/zh/i",$lang)){
 $lang = "Traditional Chinese";
 }else{
 $lang = "English";
 }
 return $lang;

 }else{return "Failed to obtain browser language! ";}
 }

 ////Get the guest operating system
 function GetOs(){
 if(!empty($_SERVER['HTTP_USER_AGENT'])){
 $OS = $_SERVER['HTTP_USER_AGENT'];
 if (preg_match('/win/i',$OS)) {
 $OS = 'Windows';
 }elseif (preg_match('/mac/i',$OS)) {
 $OS = 'MAC';
 }elseif (preg_match('/linux/i',$OS)) {
 $OS = 'Linux';
 }elseif (preg_match('/unix/i',$OS)) {
 $OS = 'Unix ';
 }elseif (preg_match('/bsd/i',$OS)) {
 $OS = 'BSD';
 }else {
 $OS = 'Other';
 }
 return $OS;
 }else {return "Failed to obtain guest operating system information! ";}
 }

 ////Get the visitor's real ip
 function Getip(){
 if(!empty($_SERVER["HTTP_CLIENT_IP"])){
 $ip = $_SERVER["HTTP_CLIENT_IP"];
 }
 if(!empty($_SERVER['HTTP_X_FORWARDED_FOR'])){ //Get proxy ip
 $ips = explode(',',$_SERVER['HTTP_X_FORWARDED_FOR']);
 }
 if($ip){
 $ips = array_unshift($ips,$ip);
 }

 $count = count($ips);
 for($i=0;$i<$count;$i++){
 if(!preg_match( "/^(10|172.16|192.168)./i",$ips[$i])){//Exclude LAN ip
 $ip = $ips[$i];
 break;
 }
 }
 $tip = empty($_SERVER['REMOTE_ADDR']) ? $ip : $_SERVER['REMOTE_ADDR'];
 if($tip=="127.0.0.1"){ //Get the local real IP
 return $this-> get_onlineip();
 }else{
 return $tip;
 }
 }

 ////Get the local real IP
 function get_onlineip() {
 $mip = file_get_contents("http://city.ip138.com/ city0.asp");
 if($mip){
 preg_match("/[.*]/",$mip,$sip);
 $p = array("/[/","/]/") ;
 return preg_replace($p,"",$sip[0]);
 }else{return "Failed to obtain local IP! ";}
 }

 ////Get the visitor's location name based on ip
 function Getaddress($ip=''){
 if(empty($ip)){
 $ip = $this->Getip() ;
 }
 $ipadd = file_get_contents("http://int.dpool.sina.com.cn/iplookup/iplookup.php?ip=".$ip);//According to Sina api interface to get
 if($ipadd ){
 $charset = iconv("gbk","utf-8",$ipadd);
 preg_match_all("/[x{4e00}-x{9fa5}]+/u",$charset,$ipadds);

 return $ipadds; //Return a two-dimensional array
 }else{return "addree is none";}
 }
 }
 $gifo = new get_gust_info();
 echo "Your ip:".$gifo- >Getip();
 echo "Location:";
 $ipadds = $gifo->Getaddress();
 foreach($ipadds[0] as $value){
 echo "rn " .iconv("utf-8","gbk",$value);
 }

 echo "Browser type:".$gifo->GetBrowser();
 echo "Browser language: ".$gifo->GetLang();
 echo "Operating system: ".$gifo->GetOs();
 ?>

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