[PHP-DOC] #17713 [Ana->Csd]: Request Reverse Lookup Reserved Variable From: philip <email protected>
Date: 01/18/03

 ID: 17713
 Updated by: philip <email protected>
 Reported By: vnolton <email protected>
-Status: Analyzed
+Status: Closed
 Bug Type: Documentation problem
 Operating System: Solaris,freebsd
 PHP Version: 4.2.1
 New Comment:

This has now been documented:
http://cvs.php.net/cvs.php/phpdoc/en/appendices/reserved.xml

Thanks for the report :)

Previous Comments:
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[2002-06-15 23:23:58] vnolton <email protected>

Thanks guys. I swear I investigated this for a long time.. I guess I
missed it :(

Thanks

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[2002-06-15 22:37:23] sniper <email protected>

This was easy to implement. :)
Just set 'HostnameLookups On' in httpd.conf
and you'll get an extra variable: REMOTE_HOST which
contains this information.

This just isn't documented (in predefined variables).
It's ONLY available when the above mentioned directive is set 'On'.

------------------------------------------------------------------------

[2002-06-11 20:26:22] vnolton <email protected>

I understand it can be done with one statement. but I figure if apache
already has this done, it would be less demanding to just have a way to
grab it with a variable. I already discovered how much it kills the cpu
to reverse the ip. But since on some machines it's already reversed why
not take advantage of this and save yourself the second step of
reversing something that has already been reversed.

Was just a thought. I understand if it's not a good idea.

Sorry again

Victor Nolton

------------------------------------------------------------------------

[2002-06-11 19:50:52] sniper <email protected>

Yasuo, the request was for the possible already reversed
name. That would not increase any but the opposite since
that is already done: Now you _have_ to do that anyway..

Not sure though if this is possible.

------------------------------------------------------------------------

[2002-06-11 19:44:38] yohgaki <email protected>

IMO, we shouldn't do that. It can be done by 1 line of php script. As
you know, DNS lookup is _expensive_ operation and kills performance a
lot. If you need reverse lookup, do it by yourself.

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The remainder of the comments for this report are too long. To view
the rest of the comments, please view the bug report online at
    http://bugs.php.net/17713 

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Edit this bug report at http://bugs.php.net/?id=17713&edit=1

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