Obtain client + server IP and geographical location information

Obtain client + server IP and geographical location information IP: 113.83.***.**
Return status: 1
IP range Strat: 113.83.0.0
IP Range End: 113.83.255.255
Country: China
Province: Guangdong
City: Huizhou
District/County:
Line: Telecom
Type:
Description:

/**
 * Get client + server IP and geographical location information Sina iplookup
 *
 * @Support: QQ 910111100 (JoY)
 * @Time: 2012.10.11 15:50:00
 * @HZapi.com (http:/ /www.hzapi.com/)
 *
*/
//Get geographical location information
function iplookup($ip=1){
 if($ip){ //Client
 $userip=egetip_joy(); // Client IP
 }else{ //Server
 $domain=$_SERVER['HTTP_HOST'];
 $userip=gethostbyname($domain);
 }
 //Return Sina geographical location information
 $json=@file_get_contents( 'http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js&ip='.$userip);
 $patterns = array();
 $patterns[0] = '/var remote_ip_info = /';
 $patterns[1] = '/;/';
 $patterns[2] = '/Wu/';
 $find = array();
 $find[0] = "";
 $ find[1] = "";
 $find[2] = "%u";
 $json = preg_replace($patterns, $find, $json); //Filter extra characters
 $json_arr=json_decode($json, true);
 return $json_arr;
}
//Get IP
function egetip_joy(){
 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'];
 }
 $ip=preg_replace("/^([d. ]+).*/","1",$ip);
 return $ip;
}
/**
 * Simulate unescape in JS
 *
 * @Support: QQ 910111100 (JoY)
 * @Time: 2012.09.29 15:50:00
 * @HZapi.com (http://www.hzapi.com/)
 * echo unescape('%u4e1c%u6e56%u82b1%u56ed4%u53f7%u5c0f%u533a');
*/
function unescape($str) {
 $str = rawurldecode($str);
 preg_match_all("/(?:%u.{4})|.{4};|d+;|.+/U",$str,$r);
 $ar = $r[0];
 foreach($ar as $k=>$v) {
 if(substr($v,0,2) == "%u")
 {
 $ar[$k] = iconv("UCS-2 ","utf-8//IGNORE",pack("H4",substr($v,-4)));
 }
 elseif(substr($v,0,3) == "")
 {
 $ar[$k] = iconv("UCS-2","utf-8",pack("H4",substr($v,3,-1)));
 }
 elseif(substr($v, 0,2) == "")
 {
 echo substr($v,2,-1)."";
 $ar[$k] = iconv("UCS-2","utf-8" ,pack("n",substr($v,2,-1)));
 }
 }
 return join("",$ar);
}


$iplookup=iplookup(); //iplookup (1) The parameter is not empty to obtain the server IP

echo "IP:".egetip_joy()."";
echo 'Return status:'.$iplookup['ret']."
echo 'IP range Strat:'.$iplookup['start']."";
echo 'IP rangeEnd:'.$iplookup['end']."" ;
echo 'Country:'.unescape($iplookup['country'])."";
echo 'Province:'.unescape($iplookup['province'])."" ;
echo 'City:'.unescape($iplookup['city'])."";
echo 'District/County:'.unescape($iplookup['district'])."
echo 'Line:'.unescape($iplookup['isp'])."";
echo 'Type:'.$iplookup['type']."";
echo 'Description:'.$iplookup['desc']."";
//print_r($iplookup);