Title: Strange problem with plugin
Last modified: August 19, 2016

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# Strange problem with plugin

 *  [jdp](https://wordpress.org/support/users/jdp/)
 * (@jdp)
 * [18 years, 1 month ago](https://wordpress.org/support/topic/strange-problem-with-plugin/)
 * I’m trying to get a vBulletin username to display in the wordpress header.
 * vBulletin is running on the site root and WP in a subdirectory. I need to include
   vB’s global.php to get the username.
 * The top of the plugin script has the following lines:
 *     ```
       $vwd = '/usr/******/docs';
       $cwd = getcwd();
       chdir($vwd);
       if (!file_exists($vwd . '/global.php'))  { echo "cannot include $vwd/global.php.  You should check your path!"; exit; }
       require_once($vwd . '/global.php');
       chdir($cwd);
       ```
   
 * However, when trying to activate the plugin, I get a fatal error and the plugin
   stays de-activated. If I comment out the “require_once” line, it activates fine.
   If I then uncomment it and re-upload the plugin script, everything works fine
   EXCEPT if I try to edit settings of other plugins I have installed (then I get
   a message “Cannot load 0”).
 * Any idea what’s causing this strange behaviour? Or any idea how I can better 
   integrate the vB username into my WP templates?
 * Many thanks!

Viewing 1 replies (of 1 total)

 *  [jamiefehr](https://wordpress.org/support/users/jamiefehr/)
 * (@jamiefehr)
 * [17 years, 6 months ago](https://wordpress.org/support/topic/strange-problem-with-plugin/#post-748830)
 * I’m working on it. There’s something really strange about how recent versions
   of wordpress interact with vbulletin.

Viewing 1 replies (of 1 total)

The topic ‘Strange problem with plugin’ is closed to new replies.

## Tags

 * [vb](https://wordpress.org/support/topic-tag/vb/)
 * [vbulletin](https://wordpress.org/support/topic-tag/vbulletin/)

 * 1 reply
 * 2 participants
 * Last reply from: [jamiefehr](https://wordpress.org/support/users/jamiefehr/)
 * Last activity: [17 years, 6 months ago](https://wordpress.org/support/topic/strange-problem-with-plugin/#post-748830)
 * Status: not resolved

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