Php obtains the visitor ip address summary, and php obtains the visitor ip Address

Php obtains the visitor ip address summary, and php obtains the visitor ip Address

// Method 1:

$ip = $_SERVER["REMOTE_ADDR"];echo $ip;

// Method 2:

Copy codeThe Code is as follows:
$ User_IP = ($ _ SERVER ["HTTP_VIA"])? $ _ SERVER ["HTTP_X_FORWARDED_FOR"]: $ _ SERVER ["REMOTE_ADDR"];
$ User_IP = ($ user_IP )? $ User_IP: $ _ SERVER ["REMOTE_ADDR"];
Echo $ user_IP;

// Method 3:

function getRealIp(){  $ip=false;  if(!empty($_SERVER["HTTP_CLIENT_IP"])){    $ip = $_SERVER["HTTP_CLIENT_IP"];  }  if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {    $ips = explode (", ", $_SERVER['HTTP_X_FORWARDED_FOR']);    if ($ip) { array_unshift($ips, $ip); $ip = FALSE; }    for ($i = 0; $i < count($ips); $i++) {      if (!eregi ("^(10│172.16│192.168).", $ips[$i])) {        $ip = $ips[$i];        break;      }    }  }  return ($ip ? $ip : $_SERVER['REMOTE_ADDR']);}echo getRealIp();

// Method 4:

if ($HTTP_SERVER_VARS["HTTP_X_FORWARDED_FOR"]){  $ip = $HTTP_SERVER_VARS["HTTP_X_FORWARDED_FOR"];}elseif ($HTTP_SERVER_VARS["HTTP_CLIENT_IP"]){  $ip = $HTTP_SERVER_VARS["HTTP_CLIENT_IP"];}elseif ($HTTP_SERVER_VARS["REMOTE_ADDR"]){  $ip = $HTTP_SERVER_VARS["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";}echo $ip ;

// Method 5:

if(getenv('HTTP_CLIENT_IP')) {  $onlineip = getenv('HTTP_CLIENT_IP');} elseif(getenv('HTTP_X_FORWARDED_FOR')) {  $onlineip = getenv('HTTP_X_FORWARDED_FOR');} elseif(getenv('REMOTE_ADDR')) {  $onlineip = getenv('REMOTE_ADDR');} else {  $onlineip = $HTTP_SERVER_VARS['REMOTE_ADDR'];}echo $onlineip;  

// Method 6:

Print "your IP address is:"; if (! Empty ($ _ SERVER ["HTTP_CLIENT_IP"]) {$ cip = $ _ SERVER ["HTTP_CLIENT_IP"];} elseif (! Empty ($ _ SERVER ["HTTP_X_FORWARDED_FOR"]) {$ cip = $ _ SERVER ["HTTP_X_FORWARDED_FOR"];} elseif (! Empty ($ _ SERVER ["REMOTE_ADDR"]) {$ cip = $ _ SERVER ["REMOTE_ADDR"];} else {$ cip = "cannot be obtained! ";} Print $ cip;

The above is all the content of this article. I hope it will help you learn php.