How To Get Remote_host?

[alexfung]

I did a <?php echo $_SERVER['REMOTE_HOST'] ?>. Returns empty.

 

Then I copied an example from PHP manual:

<?php

$headers = apache_request_headers();

 

foreach ($headers as $header => $value) {

echo "$header: $value <br />\n";

}

?>

 

no REMOTE_HOST line. no Remote_ADDR line.

 

How does the PHP_INFO list REMOTE_HOST?

 

By the way, can I check REMOTE_HOST in .htaccess RewriteCond?

[surefire]

<?php

$a=$HTTP_SERVER_VARS;

foreach($a as $key=>$val)

{

print("$key=>$val<br>");

}

?>

 

Will show you everything you want... pick the variable that interests you most.

[alexfung]

Thanks for the code. I got REMOTE_ADDR, but not REMOTE_HOST. OTOH, the

 

http://www.totalchoicehosting.com/help/info.php

 

correctly listed my REMOTE_HOST under Apache Environment. How is it possible?

 

 

An unrelated question. I have turned on notifications, and set the correct email address. However, I never got any notifications. Is there something wrong?

[alexfung]

I solved my posted question:

 

<?php echo gethostbyaddr($_SERVER['REMOTE_ADDR']) ?>

 

However, I failed to do similar things in .htaccess. Textbook examples have

 

RewriteCond %{REMOTE_HOST} ...

 

but does not work (because it is always null). Why?

[surefire]

My knowledge of playing with .htaccess is limited. Maybe you should send a support ticket.