How to implement ip collection in php-PHP Problem-php.cn

How to implement ip collection in php

藏色散人

Release： 2023-03-14 15:16:01

Original

3554 people have browsed it

php method to obtain IP: 1. Use "$_SERVER["REMOTE_ADDR"]" to obtain; 2. Use "($user_IP) ? $user_IP : $_SERVER["REMOTE_ADDR"]" to obtain; 3. , use the getRealIp method to obtain, etc.

How to implement ip collection in php

The operating environment of this article: Windows 7 system, PHP version 7.1, Dell G3 computer.

How to implement ip collection in php?

php obtains visitor IP address summary

We need it in very rare times Get the user's real IP address, for example, log records, geolocation, user information, website data analysis, etc. In fact, getting the IP address is very simple, just $_SERVER[\'REMOTE_ADDR\'].

Let’s summarize some commonly used methods for obtaining IP addresses.

//Method 1:

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

Copy after login

//Method 2:

The 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;

Copy after login

//Method 3:

function getRealIp()
{
  $ip=false;
  if(!empty($_SERVER["HTTP_CLIENT_IP"])){
    $ip = $_SERVER["HTTP_CLIENT_IP"];
  }
  if (!empty($_SERVER[&#39;HTTP_X_FORWARDED_FOR&#39;])) {
    $ips = explode (", ", $_SERVER[&#39;HTTP_X_FORWARDED_FOR&#39;]);
    if ($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[&#39;REMOTE_ADDR&#39;]);
}
echo getRealIp();

Copy after login

//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 ;

Copy after login

//Method 5:

if(getenv(&#39;HTTP_CLIENT_IP&#39;)) {
  $onlineip = getenv(&#39;HTTP_CLIENT_IP&#39;);
} elseif(getenv(&#39;HTTP_X_FORWARDED_FOR&#39;)) {
  $onlineip = getenv(&#39;HTTP_X_FORWARDED_FOR&#39;);
} elseif(getenv(&#39;REMOTE_ADDR&#39;)) {
  $onlineip = getenv(&#39;REMOTE_ADDR&#39;);
} else {
  $onlineip = $HTTP_SERVER_VARS[&#39;REMOTE_ADDR&#39;];
}
echo $onlineip;

Copy after login

//Method 6:

print "您的IP地址是：";
 
 
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 = "无法获取！";
}
print $cip;

Copy after login

Recommended study: " PHP video tutorial》

The above is the detailed content of How to implement ip collection in php. For more information, please follow other related articles on the PHP Chinese website!