phpgtk__legacy/wiki/scripts/pgcust.php

<?php if (!defined('PmWiki')) exit();
/*  Copyright 2002-2005 Patrick R. Michaud (pmichaud@pobox.com)
    This file is part of PmWiki; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published
    by the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.  See pmwiki.php for full details.

    This script enables per-page and per-group customizations in the
    local/ subdirectory (or whatever directory is given by $LocalDir).  
    For example, to create customizations for the 'Demo' group, place 
    them in a file called local/Demo.php.  To customize a single page, 
    use the full page name (e.g., local/Demo.MyPage.php).  
    Per-page/per-group customizations can be handled at any time by adding
	include_once("scripts/pgcust.php");
    to config.php.  It is automatically included by scripts/stdconfig.php
    unless $EnablePGCust is set to zero in config.php.

    A page's customization is loaded first, followed by any group
    customization.  If no page or group customizations are loaded,
    then 'local/default.php' is loaded.  

    A per-page configuration file can prevent its group's config from 
    loading by setting $EnablePGCust=0;.  A per-page configuration file 
    can force group customizations to be loaded first by using include_once
    on the group customization file.
    
*/

$f = 1;
for($p=$pagename;$p;$p=preg_replace('/\\.*[^.]*$/','',$p)) {
  if (!IsEnabled($EnablePGCust,1)) return;
  if (file_exists("$LocalDir/$p.php")) 
    { include_once("$LocalDir/$p.php"); $f=0; }
}

if ($f && IsEnabled($EnablePGCust,1) && file_exists("$LocalDir/default.php"))
  include_once("$LocalDir/default.php");