get hostname in php script

spyros

Hello

I want to find a way to obtained the ip and the hostname from the users
I want the real host name and ip address !!!!!!!!!

Can you please help me!!!
Thank you

Oni

<?
print GetHostByName($REMOTE_ADDR);
?>

You should see your hostname...?

spyros

I know normally you'd use gethostbyaddr(); , but the situation I'm working in will have 90% of the users coming from an outside address from behind a router on various networks, all using 192.86.... addresses. I Need to be able to grab the top level domain for these users

thank you

altexis

Geia sou Spyro!

If your users hide behind proxies there is not much you can do. You could do a whois but even this is tricky because you have to look at the right registry.. ARIN, RIPE, APNIC, AfriNIC, LACNIC :queasy:

spyros

Geia sou altexis

Thank you very much !

DeadlySin3

<?php
# globalEnv.php

$envs = array( "HTTP_REFERER", "HTTP_USER_AGENT", "REMOTE_ADDR", "REMOTE_HOST", "QUERY_STRING", "PATH_INFO" );

if (!isset($_SERVER['REMOTE_HOST']) && isset( $_SERVER['REMOTE_ADDR'] ) )
{
$_SERVER['REMOTE_HOST'] = gethostbyaddr( $_SERVER['REMOTE_ADDR'] );
}

foreach ( $envs as $env )
{
echo "$env: $_SERVER[$env]<br />";
}

?>

<html>
<head>
<title>Global Environment Server Variables Test</title>
</head>

<body>

<?php
$self = $_SERVER['PHP_SELF'];
echo "<a href=\"http://domain.com/dir/globalEnv.php/my_path_info?action=click_this&this=$self\">globalEnv TEST LINK</a>";


?>

</body>
</html>

Hopefully this helps you along the way!

blackhorse

So what DeadlySin3 is saying,

$SERVER['REMOTE_HOST'] is the same as gethostbyaddr( $SERVER['REMOTE_ADDR'] ), if $SERVER['REMOTE_HOST'] is set up. no need to use gethostbyaddr( $SERVER['REMOTE_ADDR'] ).

But in some site set up, HostnameLookups is not ON, so $SERVER['REMOTE_HOST'] is not set up on these sites, when $SERVER['REMOTE_HOST'] is not set up, we use gethostbyaddr( $_SERVER['REMOTE_ADDR'] ).

Right?