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-   -   Forumhome error (https://vborg.vbsupport.ru/showthread.php?t=52534)

Boofo 05-04-2003 01:03 AM
Forumhome error
 
Can someone please tell me what I am getting this error on my forumhome?

Warning: Unknown modifier 'k' in /home/bear/public_html/forum/index.php on line 414

Here is the chunk of code in question:

PHP Code:
// vbarchive robot info for currently active users
  $loggedins=$DB_site->query("SELECT session.useragent FROM session WHERE userid=0 AND lastactivity>$datecut");
  $numberwebrobots=0;
  $loggedinrobots="";

    while ($loggedin=$DB_site->fetch_array($loggedins)) {
      $checkagent = $loggedin['useragent'];
      $webrobot = useragentcheck($checkagent, 1);
        if ($webrobot)
        {
          $numberwebrobots++;
          if (!(preg_match("/$webrobot/i", $loggedinrobots) )) $loggedinrobots .= $webrobot . ", ";
        }
    }
  if (!empty($loggedinrobots)) $loggedinrobots = "(" . substr($loggedinrobots, 0, -2) .")";
  $numberguest = ($numberguest - $numberwebrobots);
// vbarchive robot info for currently active users end 
Line 414 of this is:

PHP Code:
          if (!(preg_match("/$webrobot/i", $loggedinrobots) )) $loggedinrobots .= $webrobot . ", "; 
And here is the web robot in question:

Teoma/Ask Jeeves

thuffner 05-05-2003 07:26 PM
I'd just reupload an original copy of index.php to fix the problem

WEForums 05-05-2003 09:40 PM
He wants to fix the problem though and keep his hacks.

Boofo 05-06-2003 02:39 AM
Yes, I would like to keep the others hacks. I know the problem lies in that piece if code. I'm just not sure how to fix the one line though.

WEForums 05-06-2003 02:48 AM
What does "k" mean?

Boofo 05-06-2003 03:05 AM
I'm in the dark as much as you are on that one. ;)

filburt1 05-06-2003 10:18 AM
Try using preg_quote on the useragent first.

Boofo 05-06-2003 10:29 AM
How do you mean?

filburt1 05-06-2003 10:45 AM
PHP Code:
if (!(preg_match("/" . preg_quote($webrobot) . "/i",
    $loggedinrobots) )) $loggedinrobots .= $webrobot . ", "; 

Boofo 05-06-2003 11:02 AM
Ok, I took out:

if (!(preg_match("/$webrobot/i", $loggedinrobots) )) $loggedinrobots .= $webrobot . ", ";

and put in it's place:

if (!(preg_match("/" . preg_quote($webrobot) . "/i", $loggedinrobots) )) $loggedinrobots .= $webrobot . ", ";

Was the slash in the web robot name the problem then?

And thank you very much for this. ;)

filburt1 05-06-2003 01:43 PM
It's because $webrobot had characters in it that were being interpreted as part of the regexp. :)

Boofo 05-06-2003 01:46 PM
Thank you for the fix. That has been bugging me for a while. ;)

filburt1 05-06-2003 01:48 PM
While you're at it, check out http://www.php.net/preg_quote and (IIRC) http://www.php.net/preg . Very useful stuff, that documentation ;)

Boofo 05-06-2003 02:00 PM
Thank you. Now it makes a little more sense. It was the forward slash causing problems. One last question...what is the i for ("/i", ) in the line of code? I mean, what does it do exactly?

filburt1 05-06-2003 02:01 PM
I have no idea. I know that some permutation of "siU" makes the regular expression not "greedy" but beyond that, no idea.

Erwin 05-07-2003 02:32 AM
This is deep stuff. :) Good work filburt.


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