Re: How to find callers local IP address?

'SERVER_ADDR'
The IP address of the server under which the current script is executing.

https://www.php.net/manual/en/reserved.variables.server.php

MvH / Hans Åhlin



Den sön 20 mars 2022 23:00Hans Åhlin <[email protected]> skrev:

> 'SERVER_ADDR'
> The IP address of the server under which the current script is executing.
>
> https://www.php.net/manual/en/reserved.variables.server.php
>
>
> Den sön 20 mars 2022 08:46Bo Berglund <[email protected]> skrev:
>
>> I have a script on my website, which is used to report (by email) state
>> changes
>> in home automation power switches.
>>
>> It is done by configuring the power switch with an "action URL" to be hit
>> when a
>> switch changes state. This works well as far as the switch state
>> reporting goes.
>>
>> But I would like to also get the *internal LAN* IP address of the power
>> switch
>> device in my report so I can find it on the network. The IP changes when
>> I move
>> it between my locations...
>>
>> After googling a bit I have found this code snippet:
>>
>> if (!empty($_SERVER['HTTP_CLIENT_IP'])) {
>>     $ip = $_SERVER['HTTP_CLIENT_IP'];
>> } elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
>>     $ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
>> } else {
>>     $ip = $_SERVER['REMOTE_ADDR'];
>> }
>>
>> But when I use it in my reporting I am always getting the external
>> Internet IP
>> address of my router instead of the IP of the power switch.
>>
>> How can I extract the original device's local LAN IP address from which
>> the call
>> was sent?
>>
>>
>> --
>> Bo Berglund
>> Developer in Sweden
>>
>