scriptygoddess

1 | Gregory

March 18th, 2003 at 11:13 am

Actually, depending on what version of PHP you are using this may not work. Instead of using getenv or $REMOTE_ADDR I believe you should be using $_SERVER['HTTP_X_FORWARD_FOR'] and $_SERVER['REMOTE_ADDR']. There are some comments on the manual page at http://www.php.net/manual/en/language.variables.predefined.php#language.variables.superglobals

There's also some discussion there as to times when HTTP_X_FORWARD_FOR may not give expected results.

2 | Amy

March 18th, 2003 at 11:20 am

Gregory – you're right about the $_SERVER['REMOTE_ADDR'] part. It's been de facto long enough that I think we can safely assume that all users should be doing it that way.

The list of predefined variables in PHP, and what they mean, can be found here.

3 | Jennifer

March 18th, 2003 at 11:34 am

Updated the post. Thanks!

4 | reese

March 18th, 2003 at 5:38 pm

Hi, excuse my naivety…I do use PHP and other hacks on my site, but I'm clueless as to how to implement this. WOuld it be an include or in an htaccess file? And then how would you view the results?

5 | Jennifer

March 18th, 2003 at 5:53 pm

Put your script tags around it <? and ?> and put it on your page, or in an include (it's not .htacess related so don't put it there). Then you have the user's IP as a "string" type in that variable $ip – you can do anything you want with it. Write it to a file, display it on the screen, write it to a database… all depends on what you want to do. This is just a little snippet – not too useful on its own… more as a piece to a larger whole.

6 | Neil

March 22nd, 2003 at 9:02 am

How could I ustilize this in a Contact Form?
I am currently using a Form where I don't know how to get the respondents' IP address.

I will apprecdiate any help.
thanks
neil

7 | Corey

September 24th, 2003 at 11:10 pm

Neil,

NOTE: as others mentioned above, these very by PHP version. But the ones below work for the latest versions (4.0+, ans in some of the 3+,,,they have just now released version 4.3.3)

<?php
$IP=$_SERVER['REMOTE_ADDR'];
$HOST= gethostbyaddr($IP);
?>
Your page content…blah…blah…blah…

The need to include the "php" right after the start of the script ("<?php") and in the "echo" statement varies by version of PHP, and in current versions can be set by the host. Try it without it first, and if it works use it so that you don't use alot of bandwidth on a PHP-heavy site.

8 | Corey

September 24th, 2003 at 11:14 pm

SORRY about the above, forgot to take-out my "" tags, so it didn't all post.

Neil,

NOTE: as others mentioned above, these very by PHP version. But the ones below work for the latest versions (4.0+, ans in some of the 3+,,,they have just now released version 4.3.3)

<?php
$IP=$_SERVER['REMOTE_ADDR'];
$HOST= gethostbyaddr($IP);
?>
Your page content…blah…blah…blah…
<form…..>
<input type=hidden name="UserIP" value="<?php echo $IP ?>">
<input type=hidden name="HostName" value="<?php echo $HOST ?>
</form>
The need to include the "php" right after the start of the script ("<?php") and in the "echo" statement varies by version of PHP, and in current versions can be set by the host. Try it without it first, and if it works use it so that you don't use alot of bandwidth on a PHP-heavy site.

9 | C:

October 24th, 2003 at 1:36 pm

Many thanks!!! you are in my fav. Goddess!

10 | Edwin

November 24th, 2003 at 10:43 am

I have just tried this code at the top of a PHP script:

2    if ($_SERVER['HTTP_X_FORWARD_FOR'])
3 {
4 $REM_ADDR = $_SERVER['HTTP_X_FORWARD_FOR'];
5 } else {
6 $REM_ADDR = $_SERVER['REMOTE_ADDR'];
7 }
8  $HOST = $_SERVER['HTTP_HOST']; // grabs host
9  $USER_AGENT = $_SERVER['HTTP_USER_AGENT'];

But it gives me this error in the browser when I upload and vioew it online:

Parse error: parse error in /home/schofield/public_html/test.php on line 2

I have tried with JUST this code – nothing else and I still get the error. Is it to do with server settings at my ISP?

Not had any other problems with my PHP on the server.

This is the
http://www.extendev.co.uk/test.php

11 | Jennifer

November 24th, 2003 at 10:50 am

Silly question maybe – but what's in line 1? Try removing any extra spaces around the code – maybe there's some hidden characters that aren't displaying in your text editor that's messing it up?

12 | Royce Hart

December 18th, 2003 at 3:05 pm

I'm not certain, but I believe that GetHostByName() has been crashing in instances where the IP address of the visitor does not resolve. Has anyone else experienced issues with this function? Thanks.