How to determine that application is running on internet or intranet using php script

Question

Is any method is available which through we can determine that our current connection is through internet Or intranet using php script.

Thanks.....

check request origin's IP address – roninblade Aug 28 '13 at 07:27 — roninblade, Aug 28 '13 at 07:27

score 1 · Answer 1 · answered Aug 28 '13 at 07:26

1

You can use $_SERVER["HTTP_HOST"] variable to obtain if it is localhost or other IP address.

answered Aug 28 '13 at 07:26

hsz

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This elaborates on this solution somewhat. http://stackoverflow.com/questions/13818064/check-if-an-ip-address-is-private – Anthony Sterling Aug 28 '13 at 07:35
Intranet generally means "from the same LAN as the server", not just "from the same computer as the server" – Quentin Aug 28 '13 at 07:50

score 1 · Answer 2 · answered Aug 28 '13 at 08:00

You could check $_SERVER['SERVER_ADDR'] against $_SERVER['REMOTE_ADDR'] If the first number of the IP is the same and is 192,172,10 or 127 then it is most likely an intranet page.

like this:

function is_intranet() {
  $serverIP = explode('.',$_SERVER['SERVER_ADDR']);
  $localIP  = explode('.',$_SERVER['REMOTE_ADDR']);
  return ( 
    ($serverIP[0] == $localIP[0]) && 
    (in_array($serverIP[0],array('127','10','172','192') ) ) 
  );
}

this can be improved upon a bit using the rules here: http://en.wikipedia.org/wiki/Private_network

How to determine that application is running on internet or intranet using php script

2 Answers2

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