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Re: Beginner's trouble with substr [message #179459 is a reply to message #179456]

Mon, 29 October 2012 22:47

Denis McMahon
Messages: 634
Registered: September 2010

Karma:

Senior Member

On Mon, 29 Oct 2012 10:40:31 -0700, C wrote:

> On 29 loka, 19:34, Salvatore <s...@yojimbo.hack.invalid> wrote:
>> On 2012-10-29, wrong.addres...@gmail.com <wrong.addres...@gmail.com>
>> wrote:
>>
>>> What am I doing wrong in this? The substr part does not seem to get
>>> processed properly.
>>
>>> <?php
>>
>>> global $host;
>>> $host=@gethostbyaddr($REMOTE_ADDR);
>>> if ($HTTP_SERVER_VARS["HTTP_X_FORWARDED_FOR"] != "")
>>> {$realhost =
>>> @gethostbyaddr($HTTP_SERVER_VARS["HTTP_X_FORWARDED_FOR"]);}
>>> $referer = $HTTP_REFERER;
>>
>>> if (substr($host, -3) == ".xy") {exit;} //
>>> if (substr($host, 6) == "abcd29") {exit;} //
>>> if (substr($referer, -4) == ".xyz") {exit;} //
>>
>>> if ($found == 1) {include 'simple.html';} else {include 'home.html';}
>>
>>> ?>
>>
>> The first thing I see wrong is that the variable "$found" is not
>> declared.
>>
>> What are you trying to achieve?
>>
>> --
>> Blah blah bleh...
>> GCS/CM d(-)@>-- s+:- !a C++$ UBL++++$ L+$ W+++$ w M++ Y++ b++
>
> I took that code out which defines $found. The code is trying to avoid
> some nasty visitors.

If you know who your "nasty visitors" are, is it not possible (and maybe
better) to block them in the server config? eg for apache2:

# Stop these bastards accessing any php files
<Files ~ "\.php$">
SetEnvIf Remote_Host ^abcd29 bastard
Order allow,deny
Allow from all
Deny from .xy
Deny from .xyz
Deny from env = bastard
</Files>

Rgds

Denis McMahon

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[Message index]

		Beginner's trouble with substr By: C on Mon, 29 October 2012 17:20
		Re: Beginner's trouble with substr By: Salvatore on Mon, 29 October 2012 17:34
		Re: Beginner's trouble with substr By: C on Mon, 29 October 2012 17:40
		Re: Beginner's trouble with substr By: Salvatore on Mon, 29 October 2012 19:46
		Re: Beginner's trouble with substr By: C on Tue, 30 October 2012 05:18
		Re: Beginner's trouble with substr By: Denis McMahon on Mon, 29 October 2012 22:47
		Re: Beginner's trouble with substr By: C on Tue, 30 October 2012 05:21
		Re: Beginner's trouble with substr By: Denis McMahon on Mon, 29 October 2012 23:17
		Re: Beginner's trouble with substr By: C on Tue, 30 October 2012 05:30
		Re: Beginner's trouble with substr By: Doug Miller on Mon, 29 October 2012 20:44
		Re: Beginner's trouble with substr By: C on Tue, 30 October 2012 05:19

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