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Netcom client downloads ip PHP to obtain the encapsulation class of client and server IP

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Release: 2016-07-27 16:56:19
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The example in this article describes the encapsulation class for PHP to obtain client and server IP. Share it with everyone for your reference, the details are as follows:

Client IP related variables:

1. $_SERVER['REMOTE_ADDR']; The client IP may be the user's IP or the proxy's IP.

2. $_SERVER['HTTP_CLIENT_IP']; The proxy IP may exist and can be forged.

3. $_SERVER['HTTP_X_FORWARDED_FOR']; Which IP the user uses as a proxy may exist and can be forged.

Server-side IP related variables:

1. $_SERVER["SERVER_NAME"], which needs to be obtained using the function gethostbyname(). This variable displays correctly on both the server and client sides.

2. $_SERVER["SERVER_ADDR"], tested on the server side: 127.0.0.1 (this is related to the setting value of BindAddress in httpd.conf). The test results on the client are correct.

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class getIP{

 function clientIP(){

 $cIP = getenv('REMOTE_ADDR');

 $cIP1 = getenv('HTTP_X_FORWARDED_FOR');

 $cIP2 = getenv('HTTP_CLIENT_IP');

 $cIP1 ? $cIP = $cIP1 : null;

 $cIP2 ? $cIP = $cIP2 : null;

 return $cIP;

 }

 function serverIP(){

 return gethostbyname($_SERVER["SERVER_NAME"]);

 }

}

$getIP = new getIP();

$clientIp = getIP::clientIP();

$serverIp = getIP::serverIP();

echo 'Client IP is ',$clientIp,'<br />';

echo 'Server IP is ',$serverIp,'<br />';

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I hope this article will be helpful to everyone in PHP programming.

The above introduces the encapsulation class of Netcom client download ip PHP to obtain client and server IP, including the content of Netcom client download ip. I hope it will be helpful to friends who are interested in PHP tutorials.

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