PHP cache_forums函数代码示例

function fetch_forum_announcements($pid = 0, $depth = 1)
{
    global $mybb, $db, $lang, $announcements, $templates, $announcements_forum, $moderated_forums;
    static $forums_by_parent, $forum_cache, $parent_forums;
    if (!is_array($forum_cache)) {
        $forum_cache = cache_forums();
    }
    if (!is_array($parent_forums) && $mybb->user['issupermod'] != 1) {
        // Get a list of parentforums to show for normal moderators
        $parent_forums = array();
        foreach ($moderated_forums as $mfid) {
            $parent_forums = array_merge($parent_forums, explode(',', $forum_cache[$mfid]['parentlist']));
        }
    }
    if (!is_array($forums_by_parent)) {
        foreach ($forum_cache as $forum) {
            $forums_by_parent[$forum['pid']][$forum['disporder']][$forum['fid']] = $forum;
        }
    }
    if (!is_array($forums_by_parent[$pid])) {
        return;
    }
    foreach ($forums_by_parent[$pid] as $children) {
        foreach ($children as $forum) {
            if ($forum['active'] == 0 || !is_moderator($forum['fid'])) {
                // Check if this forum is a parent of a moderated forum
                if (in_array($forum['fid'], $parent_forums)) {
                    // A child is moderated, so print out this forum's title.  RECURSE!
                    $trow = alt_trow();
                    eval("\$announcements_forum .= \"" . $templates->get("modcp_announcements_forum_nomod") . "\";");
                } else {
                    // No subforum is moderated by this mod, so safely continue
                    continue;
                }
            } else {
                // This forum is moderated by the user, so print out the forum's title, and its announcements
                $trow = alt_trow();
                $padding = 40 * ($depth - 1);
                eval("\$announcements_forum .= \"" . $templates->get("modcp_announcements_forum") . "\";");
                if ($announcements[$forum['fid']]) {
                    foreach ($announcements[$forum['fid']] as $aid => $announcement) {
                        $trow = alt_trow();
                        if ($announcement['enddate'] < TIME_NOW && $announcement['enddate'] != 0) {
                            $icon = "<img src=\"images/minioff.gif\" alt=\"({$lang->expired})\" title=\"{$lang->expired_announcement}\"  style=\"vertical-align: middle;\" /> ";
                        } else {
                            $icon = "<img src=\"images/minion.gif\" alt=\"({$lang->active})\" title=\"{$lang->active_announcement}\"  style=\"vertical-align: middle;\" /> ";
                        }
                        $subject = htmlspecialchars_uni($announcement['subject']);
                        eval("\$announcements_forum .= \"" . $templates->get("modcp_announcements_announcement") . "\";");
                    }
                }
            }
            // Build the list for any sub forums of this forum
            if ($forums_by_parent[$forum['fid']]) {
                fetch_forum_announcements($forum['fid'], $depth + 1);
            }
        }
    }
}

 /**
  * Let's see if the correct password is given for a forum!
  * Possible Todo: Pass passowrds in an array for defining passwords for parent categories (so far this only works when parent foums have same pass)
  *
  * @param integer $forum_id ID of Forum
  * @param string $password Wow, what might this be??
  * @return boolean
  */
 function checkForumPassword($forum_id, $password = '', $pid = 0)
 {
     global $forum_cache;
     if (!is_array($forum_cache)) {
         $forum_cache = cache_forums();
         if (!$forum_cache) {
             return false;
         }
     }
     // Loop through each of parent forums to ensure we have a password for them too
     $parents = explode(',', $forum_cache[$fid]['parentlist']);
     rsort($parents);
     if (!empty($parents)) {
         foreach ($parents as $parent_id) {
             if ($parent_id == $forum_id || $parent_id == $pid) {
                 continue;
             }
             if ($forum_cache[$parent_id]['password'] != "") {
                 if (!$this->checkForumPassword($parent_id, $password)) {
                     return false;
                 }
             }
         }
     }
     $forum_password = $forum_cache[$forum_id]['password'];
     // A password is required
     if ($forum_password) {
         if (empty($password)) {
             if (!$this->mybb->cookies['forumpass'][$forum_id] || $this->mybb->cookies['forumpass'][$forum_id] && md5($this->mybb->user['uid'] . $forum_password) != $this->mybb->cookies['forumpass'][$forum_id]) {
                 return false;
             } else {
                 return true;
             }
         } else {
             if ($forum_password == $password) {
                 $this->setCookie('forumpass[' . $forum_id . ']', md5($this->mybb->user['uid'] . $password), NULL, true);
                 return true;
             } else {
                 return false;
             }
         }
     } else {
         return true;
     }
 }

 /**
 This is where you perform the action when the API is called, the parameter given is an instance of stdClass, this method should return an instance of stdClass.
 */
 public function action()
 {
     global $mybb, $db;
     $api = APISystem::get_instance();
     if (isset($api->paths[1]) && is_string($api->paths[1])) {
         $forums = cache_forums();
         switch (strtolower($api->paths[1])) {
             case "list":
                 if (isset($api->paths[2]) && is_string($api->paths[2]) && isset($forums[$api->paths[2]])) {
                     return (object) $forums[$api->paths[2]];
                 } else {
                     return (object) $forums;
                 }
                 break;
             case "threads":
                 if (isset($api->paths[2]) && is_string($api->paths[2]) && isset($forums[$api->paths[2]])) {
                     $threads = array();
                     $fid = $db->escape_string($api->paths[2]);
                     $query = $db->write_query("SELECT * FROM " . TABLE_PREFIX . "threads t WHERE t.`fid` = '{$fid}'");
                     while ($thread = $db->fetch_array($query)) {
                         $threads[$thread["tid"]] = $thread;
                     }
                     return (object) $threads;
                 } else {
                     // what forum?
                 }
                 break;
             case "permissions":
                 if (isset($api->paths[2]) && is_string($api->paths[2]) && isset($forums[$api->paths[2]]) && $this->is_authenticated()) {
                     return (object) forum_permissions($api->paths[2], $this->get_user()->id, $this->get_user()->usergroup);
                 } else {
                     //what forum?
                 }
             default:
                 break;
         }
     }
     throw new BadRequestException("No valid option given in the URL.");
 }

 $plugins->run_hooks("admin_tools_modlog_prune");
 if ($mybb->request_method == 'post') {
     $where = 'dateline < ' . (TIME_NOW - intval($mybb->input['older_than']) * 86400);
     // Searching for entries by a particular user
     if ($mybb->input['uid']) {
         $where .= " AND uid='" . intval($mybb->input['uid']) . "'";
     }
     // Searching for entries in a specific module
     if ($mybb->input['fid'] > 0) {
         $where .= " AND fid='" . $db->escape_string($mybb->input['fid']) . "'";
     }
     $db->delete_query("moderatorlog", $where);
     $num_deleted = $db->affected_rows();
     $plugins->run_hooks("admin_tools_modlog_prune_commit");
     if (!is_array($forum_cache)) {
         $forum_cache = cache_forums();
     }
     // Log admin action
     log_admin_action($mybb->input['older_than'], $mybb->input['uid'], $mybb->input['fid'], $num_deleted, $forum_cache[$mybb->input['fid']]['name']);
     flash_message($lang->success_pruned_mod_logs, 'success');
     admin_redirect("index.php?module=tools/modlog");
 }
 $page->add_breadcrumb_item($lang->prune_mod_logs, "index.php?module=tools/modlog&amp;action=prune");
 $page->output_header($lang->prune_mod_logs);
 $page->output_nav_tabs($sub_tabs, 'prune_mod_logs');
 // Fetch filter options
 $sortbysel[$mybb->input['sortby']] = 'selected="selected"';
 $ordersel[$mybb->input['order']] = 'selected="selected"';
 $user_options[''] = $lang->all_moderators;
 $user_options['0'] = '----------';
 $query = $db->query("\n\t\tSELECT DISTINCT l.uid, u.username\n\t\tFROM " . TABLE_PREFIX . "moderatorlog l\n\t\tLEFT JOIN " . TABLE_PREFIX . "users u ON (l.uid=u.uid)\n\t\tORDER BY u.username ASC\n\t");

}
$taptalk_from = '';
if (strpos($_SERVER['HTTP_USER_AGENT'], 'BYO') !== false) {
    $taptalk_from = 'BYO';
}
$_SERVER['QUERY_STRING'] = 'method=' . $request_method . '&params=' . $request_params[0] . '&from=' . $taptalk_from;
define("IN_MYBB", 1);
require_once './global.php';
if (!isset($cache->cache['plugins']['active']['tapatalk']) && $request_method != 'get_config') {
    get_error('Tapatalk will not work on this forum before forum admin Install & Activate tapatalk plugin on forum side!');
}
// hide forum option
if ($mybb->settings['tapatalk_hide_forum']) {
    $t_hfids = array_map('intval', explode(',', $mybb->settings['tapatalk_hide_forum']));
    if (empty($forum_cache)) {
        cache_forums();
    }
    foreach ($t_hfids as $t_hfid) {
        $forum_cache[$t_hfid]['active'] = 0;
    }
}
if ($request_method && isset($server_param[$request_method])) {
    if ($function_file_name == 'thankyoulike' && file_exists('thankyoulike.php')) {
        include 'thankyoulike.php';
    } else {
        if (substr($request_method, 0, 2) == 'm_') {
            include TT_ROOT . 'include/moderation.php';
        } else {
            if (file_exists(TT_ROOT . 'include/' . $function_file_name . '.php')) {
                include TT_ROOT . 'include/' . $function_file_name . '.php';
            }

/**
 * Check the password given on a certain forum for validity
 *
 * @param int The forum ID
 * @param boolean The Parent ID
 */
function check_forum_password_archive($fid, $pid = 0)
{
    global $forum_cache;
    if (!is_array($forum_cache)) {
        $forum_cache = cache_forums();
        if (!$forum_cache) {
            return false;
        }
    }
    // Loop through each of parent forums to ensure we have a password for them too
    $parents = explode(',', $forum_cache[$fid]['parentlist']);
    rsort($parents);
    if (!empty($parents)) {
        foreach ($parents as $parent_id) {
            if ($parent_id == $fid || $parent_id == $pid) {
                continue;
            }
            if ($forum_cache[$parent_id]['password'] != "") {
                check_forum_password_archive($parent_id, $fid);
            }
        }
    }
    $password = $forum_cache[$fid]['password'];
    if ($password) {
        if (!$mybb->cookies['forumpass'][$fid] || $mybb->cookies['forumpass'][$fid] && md5($mybb->user['uid'] . $password) != $mybb->cookies['forumpass'][$fid]) {
            archive_error_no_permission();
        }
    }
}

function ougc_showinportal_cutoff(&$message, $fid, $tid)
{
    global $settings;
    if (!$message || !$settings['ougc_showinportal_tag']) {
        return;
    }
    if (!preg_match('#' . ($tag = preg_quote($settings['ougc_showinportal_tag'])) . '#', $message)) {
        return;
    }
    $msg = preg_split('#' . $tag . '#', $message);
    if (!(isset($msg[0]) && my_strlen($msg[0]) >= (int) $settings['minmessagelength'])) {
        return;
    }
    global $lang, $forum_cache, $showinportal;
    $showinportal->lang_load();
    $forum_cache or cache_forums();
    // Find out what langguage variable to use
    $lang_var = 'ougc_showinportal_readmore';
    if ((bool) $forum_cache[$fid]['allowmycode']) {
        $lang_var .= '_mycode';
    } elseif ((bool) $forum_cache[$fid]['allowhtml']) {
        $lang_var .= '_html';
    }
    $message = $msg[0] . $lang->sprintf($lang->{$lang_var}, $settings['bburl'], get_thread_link($tid));
}

function tt_check_forum_password($fid, $pid = 0, $pass = '')
{
    global $mybb, $header, $footer, $headerinclude, $theme, $templates, $lang, $forum_cache;
    $mybb->input['pwverify'] = $pass;
    $showform = true;
    if (!is_array($forum_cache)) {
        $forum_cache = cache_forums();
        if (!$forum_cache) {
            return false;
        }
    }
    // Loop through each of parent forums to ensure we have a password for them too
    $parents = explode(',', $forum_cache[$fid]['parentlist']);
    rsort($parents);
    if (!empty($parents)) {
        foreach ($parents as $parent_id) {
            if ($parent_id == $fid || $parent_id == $pid) {
                continue;
            }
            if ($forum_cache[$parent_id]['password'] != "") {
                tt_check_forum_password($parent_id, $fid);
            }
        }
    }
    $password = $forum_cache[$fid]['password'];
    if ($password) {
        if ($mybb->input['pwverify'] && $pid == 0) {
            if ($password == $mybb->input['pwverify']) {
                my_setcookie("forumpass[{$fid}]", md5($mybb->user['uid'] . $mybb->input['pwverify']), null, true);
                $showform = false;
            } else {
                eval("\$pwnote = \"" . $templates->get("forumdisplay_password_wrongpass") . "\";");
                $showform = true;
            }
        } else {
            if (!$mybb->cookies['forumpass'][$fid] || $mybb->cookies['forumpass'][$fid] && md5($mybb->user['uid'] . $password) != $mybb->cookies['forumpass'][$fid]) {
                $showform = true;
            } else {
                $showform = false;
            }
        }
    } else {
        $showform = false;
    }
    if ($showform) {
        if (empty($pwnote)) {
            global $lang;
            $pwnote = $lang->forum_password_note;
        }
        error($pwnote);
    }
}

/**
 * Build a array list of the forums this user cannot search due to password protection
 *
 * @param int the fids to check (leave null to check all forums)
 * @return return a array list of password protected forums the user cannot search
 */
function get_password_protected_forums($fids = array())
{
    global $forum_cache, $mybb;
    if (!is_array($fids)) {
        return false;
    }
    if (!is_array($forum_cache)) {
        $forum_cache = cache_forums();
        if (!$forum_cache) {
            return false;
        }
    }
    if (empty($fids)) {
        $fids = array_keys($forum_cache);
    }
    $pass_fids = array();
    foreach ($fids as $fid) {
        if (empty($forum_cache[$fid]['password'])) {
            continue;
        }
        if (md5($mybb->user['uid'] . $forum_cache[$fid]['password']) != $mybb->cookies['forumpass'][$fid]) {
            $pass_fids[] = $fid;
            $child_list = get_child_list($fid);
        }
        if (is_array($child_list)) {
            $pass_fids = array_merge($pass_fids, $child_list);
        }
    }
    return array_unique($pass_fids);
}

function build_tt_breadcrumb($fid, $multipage = array())
{
    global $pforumcache, $currentitem, $forum_cache, $navbits, $lang, $base_url, $archiveurl;
    if (!$pforumcache) {
        if (!is_array($forum_cache)) {
            cache_forums();
        }
        foreach ($forum_cache as $key => $val) {
            $pforumcache[$val['fid']][$val['pid']] = $val;
        }
    }
    if (is_array($pforumcache[$fid])) {
        foreach ($pforumcache[$fid] as $key => $forumnav) {
            if ($fid == $forumnav['fid']) {
                if ($pforumcache[$forumnav['pid']]) {
                    build_tt_breadcrumb($forumnav['pid']);
                }
                $navsize = count($navbits);
                // Convert & to &
                $navbits[$navsize]['name'] = $forumnav['name'];
                $navbits[$navsize]['type'] = $pforumcache[$fid][$forumnav['pid']]['type'];
                if (IN_ARCHIVE == 1) {
                    // Set up link to forum in breadcrumb.
                    if ($pforumcache[$fid][$forumnav['pid']]['type'] == 'f' || $pforumcache[$fid][$forumnav['pid']]['type'] == 'c') {
                        $navbits[$navsize]['fid'] = $forumnav['fid'];
                    } else {
                        $navbits[$navsize]['fid'] = "";
                    }
                } else {
                    $navbits[$navsize]['fid'] = $forumnav['fid'];
                }
            }
        }
    }
    return 1;
}

function cache_forums($forumid = -1, $depth = 0)
{
	// returns an array of forums with correct parenting and depth information
	// see makeforumchooser for an example of usage

	die('
		<p>The function <strong>cache_forums()</strong> is now redundant.</p>
		<p>The standard <em>$vbulletin->forumcache</em> variable now has a \'depth\' key for each forum,
		which can be used for producing the depthmark etc.</p>
		<p>Additionally, the <em>$vbulletin->forumcache</em> is now stored in the correct order</p>
	');

	global $vbulletin, $count;
	static $fcache, $i;
	if (!is_array($fcache))
	{
	// check to see if we have already got the results from the database
		$fcache = array();
		$vbulletin->forumcache = array();
		$forums = $vbulletin->db->query_read_slave("SELECT * FROM " . TABLE_PREFIX . "forum ORDER BY displayorder");
		while ($forum = $vbulletin->db->fetch_array($forums))
		{
			$fcache["$forum[parentid]"]["$forum[forumid]"] = $forum;
		}
	}

	// database has already been queried
	if (is_array($fcache["$forumid"]))
	{
		foreach ($fcache["$forumid"] AS $forum)
		{
			$vbulletin->forumcache["$forum[forumid]"] = $forum;
			$vbulletin->forumcache["$forum[forumid]"]['depth'] = $depth;
			unset($fcache["$forumid"]);
			cache_forums($forum['forumid'], $depth + 1);
		} // end foreach ($fcache["$forumid"] AS $key1 => $val1)
	} // end if (found $fcache["$forumid"])
}

/**
 * @param DefaultFormContainer $form_container
 * @param int $pid
 * @param int $depth
 */
function build_admincp_forums_list(&$form_container, $pid = 0, $depth = 1)
{
    global $mybb, $lang, $db, $sub_forums;
    static $forums_by_parent;
    if (!is_array($forums_by_parent)) {
        $forum_cache = cache_forums();
        foreach ($forum_cache as $forum) {
            $forums_by_parent[$forum['pid']][$forum['disporder']][$forum['fid']] = $forum;
        }
    }
    if (!is_array($forums_by_parent[$pid])) {
        return;
    }
    foreach ($forums_by_parent[$pid] as $children) {
        foreach ($children as $forum) {
            $forum['name'] = preg_replace("#&(?!\\#[0-9]+;)#si", "&", $forum['name']);
            // Fix & but allow unicode
            if ($forum['active'] == 0) {
                $forum['name'] = "<em>" . $forum['name'] . "</em>";
            }
            if ($forum['type'] == "c" && ($depth == 1 || $depth == 2)) {
                $sub_forums = '';
                if (isset($forums_by_parent[$forum['fid']]) && $depth == 2) {
                    build_admincp_forums_list($form_container, $forum['fid'], $depth + 1);
                }
                if ($sub_forums) {
                    $sub_forums = "<br /><small>{$lang->sub_forums}: {$sub_forums}</small>";
                }
                $form_container->output_cell("<div style=\"padding-left: " . 40 * ($depth - 1) . "px;\"><a href=\"index.php?module=forum-management&amp;fid={$forum['fid']}\"><strong>{$forum['name']}</strong></a>{$sub_forums}</div>");
                $form_container->output_cell("<input type=\"text\" name=\"disporder[" . $forum['fid'] . "]\" value=\"" . $forum['disporder'] . "\" class=\"text_input align_center\" style=\"width: 80%; font-weight: bold;\" />", array("class" => "align_center"));
                $popup = new PopupMenu("forum_{$forum['fid']}", $lang->options);
                $popup->add_item($lang->edit_forum, "index.php?module=forum-management&amp;action=edit&amp;fid={$forum['fid']}");
                $popup->add_item($lang->subforums, "index.php?module=forum-management&amp;fid={$forum['fid']}");
                $popup->add_item($lang->moderators, "index.php?module=forum-management&amp;fid={$forum['fid']}#tab_moderators");
                $popup->add_item($lang->permissions, "index.php?module=forum-management&amp;fid={$forum['fid']}#tab_permissions");
                $popup->add_item($lang->add_child_forum, "index.php?module=forum-management&amp;action=add&amp;pid={$forum['fid']}");
                $popup->add_item($lang->copy_forum, "index.php?module=forum-management&amp;action=copy&amp;fid={$forum['fid']}");
                $popup->add_item($lang->delete_forum, "index.php?module=forum-management&amp;action=delete&amp;fid={$forum['fid']}&amp;my_post_key={$mybb->post_code}", "return AdminCP.deleteConfirmation(this, '{$lang->confirm_forum_deletion}')");
                $form_container->output_cell($popup->fetch(), array("class" => "align_center"));
                $form_container->construct_row();
                // Does this category have any sub forums?
                if ($forums_by_parent[$forum['fid']]) {
                    build_admincp_forums_list($form_container, $forum['fid'], $depth + 1);
                }
            } elseif ($forum['type'] == "f" && ($depth == 1 || $depth == 2)) {
                if ($forum['description']) {
                    $forum['description'] = preg_replace("#&(?!\\#[0-9]+;)#si", "&amp;", $forum['description']);
                    $forum['description'] = "<br /><small>" . $forum['description'] . "</small>";
                }
                $sub_forums = '';
                if (isset($forums_by_parent[$forum['fid']]) && $depth == 2) {
                    build_admincp_forums_list($form_container, $forum['fid'], $depth + 1);
                }
                if ($sub_forums) {
                    $sub_forums = "<br /><small>{$lang->sub_forums}: {$sub_forums}</small>";
                }
                $form_container->output_cell("<div style=\"padding-left: " . 40 * ($depth - 1) . "px;\"><a href=\"index.php?module=forum-management&amp;fid={$forum['fid']}\">{$forum['name']}</a>{$forum['description']}{$sub_forums}</div>");
                $form_container->output_cell("<input type=\"text\" name=\"disporder[" . $forum['fid'] . "]\" value=\"" . $forum['disporder'] . "\" class=\"text_input align_center\" style=\"width: 80%;\" />", array("class" => "align_center"));
                $popup = new PopupMenu("forum_{$forum['fid']}", $lang->options);
                $popup->add_item($lang->edit_forum, "index.php?module=forum-management&amp;action=edit&amp;fid={$forum['fid']}");
                $popup->add_item($lang->subforums, "index.php?module=forum-management&amp;fid={$forum['fid']}");
                $popup->add_item($lang->moderators, "index.php?module=forum-management&amp;fid={$forum['fid']}#tab_moderators");
                $popup->add_item($lang->permissions, "index.php?module=forum-management&amp;fid={$forum['fid']}#tab_permissions");
                $popup->add_item($lang->add_child_forum, "index.php?module=forum-management&amp;action=add&amp;pid={$forum['fid']}");
                $popup->add_item($lang->copy_forum, "index.php?module=forum-management&amp;action=copy&amp;fid={$forum['fid']}");
                $popup->add_item($lang->delete_forum, "index.php?module=forum-management&amp;action=delete&amp;fid={$forum['fid']}&amp;my_post_key={$mybb->post_code}", "return AdminCP.deleteConfirmation(this, '{$lang->confirm_forum_deletion}')");
                $form_container->output_cell($popup->fetch(), array("class" => "align_center"));
                $form_container->construct_row();
                if (isset($forums_by_parent[$forum['fid']]) && $depth == 1) {
                    build_admincp_forums_list($form_container, $forum['fid'], $depth + 1);
                }
            } else {
                if ($depth == 3) {
                    if ($donecount < $mybb->settings['subforumsindex']) {
                        $sub_forums .= "{$comma} <a href=\"index.php?module=forum-management&amp;fid={$forum['fid']}\">{$forum['name']}</a>";
                        $comma = $lang->comma;
                    }
                    // Have we reached our max visible subforums? put a nice message and break out of the loop
                    ++$donecount;
                    if ($donecount == $mybb->settings['subforumsindex']) {
                        if (subforums_count($forums_by_parent[$pid]) > $donecount) {
                            $sub_forums .= $comma . $lang->sprintf($lang->more_subforums, subforums_count($forums_by_parent[$pid]) - $donecount);
                            return;
                        }
                    }
                }
            }
        }
    }
}

function ps_GetUnviewable($name = "")
{
    global $mybb, $forum_cache;
    $unviewwhere = $comma = '';
    $name ? $name .= '.' : NULL;
    $unviewable = get_unviewable_forums();
    if ($mybb->settings['ps_ignoreforums']) {
        !is_array($forum_cache) ? cache_forums() : NULL;
        if (in_array($mybb->settings['ps_ignoreforums'], array(-1, 'all'))) {
            foreach ($forum_cache as $fid => $forum) {
                $ignoreforums[] = $forum['fid'];
            }
        } else {
            $ignoreforums = explode(',', $mybb->settings['ps_ignoreforums']);
        }
        if (count($ignoreforums)) {
            $unviewable ? $unviewable .= ',' : NULL;
            foreach ($ignoreforums as $fid) {
                $unviewable .= $comma . "'" . intval($fid) . "'";
                $comma = ',';
            }
        }
    }
    if ($unviewable) {
        $unviewwhere = "AND " . $name . "fid NOT IN (" . $unviewable . ")";
    }
    return array($unviewwhere, explode(',', $unviewable));
}

function xthreads_breadcrumb_hack($fid)
{
    global $pforumcache, $forum_cache;
    if (!$pforumcache) {
        if (!is_array($forum_cache)) {
            cache_forums();
        }
        foreach ($forum_cache as &$val) {
            // MyBB does this very weirdly... I mean, like
            // ...the second dimension of the array is useless, since fid
            // is pulling a unique $val already...
            $pforumcache[$val['fid']][$val['pid']] = $val;
        }
    }
    if (!is_array($pforumcache[$fid])) {
        return;
    }
    // our strategy works by rewriting parents of forums below hidden forums
    foreach ($pforumcache[$fid] as &$pforum) {
        // will only ever loop once
        if ($pforum['fid'] != $fid) {
            continue;
        }
        // paranoia
        // we can't really hide the active breadcrumb, so ignore current forum...
        // (actually, it might be possible if we rewrite forum ids)
        if ($pforum['pid'] && !empty($pforumcache[$pforum['pid']])) {
            $prevforum =& $pforum;
            $forum =& xthreads_get_array_first($pforumcache[$pforum['pid']]);
            while ($forum) {
                if (!$forum['xthreads_hidebreadcrumb']) {
                    // rewrite parent fid (won't actually change if there's no hidden breadcrumbs in-between)
                    $prevforum['pid'] = $forum['fid'];
                    $prevforum =& $forum;
                }
                if (!$forum['pid'] || empty($pforumcache[$forum['pid']])) {
                    break;
                }
                $forum =& xthreads_get_array_first($pforumcache[$forum['pid']]);
            }
            $prevforum['pid'] = 0;
        }
    }
}

/**
 * @param DefaultTable $table
 * @param int $pid
 * @param int $depth
 */
function fetch_forum_announcements(&$table, $pid = 0, $depth = 1)
{
    global $mybb, $db, $lang, $announcements, $page;
    static $forums_by_parent;
    if (!is_array($forums_by_parent)) {
        $forum_cache = cache_forums();
        foreach ($forum_cache as $forum) {
            $forums_by_parent[$forum['pid']][$forum['disporder']][$forum['fid']] = $forum;
        }
    }
    if (!is_array($forums_by_parent[$pid])) {
        return;
    }
    foreach ($forums_by_parent[$pid] as $children) {
        foreach ($children as $forum) {
            $forum['name'] = htmlspecialchars_uni($forum['name']);
            if ($forum['active'] == 0) {
                $forum['name'] = "<em>" . $forum['name'] . "</em>";
            }
            if ($forum['type'] == "c") {
                $forum['name'] = "<strong>" . $forum['name'] . "</strong>";
            }
            $table->construct_cell("<div style=\"padding-left: " . 40 * ($depth - 1) . "px;\">{$forum['name']}</div>");
            $table->construct_cell("<a href=\"index.php?module=forum-announcements&amp;action=add&amp;fid={$forum['fid']}\">{$lang->add_announcement}</a>", array("class" => "align_center", "colspan" => 2));
            $table->construct_row();
            if (isset($announcements[$forum['fid']])) {
                foreach ($announcements[$forum['fid']] as $aid => $announcement) {
                    if ($announcement['enddate'] < TIME_NOW && $announcement['enddate'] != 0) {
                        $icon = "<img src=\"styles/{$page->style}/images/icons/bullet_off.png\" alt=\"(Expired)\" title=\"Expired Announcement\"  style=\"vertical-align: middle;\" /> ";
                    } else {
                        $icon = "<img src=\"styles/{$page->style}/images/icons/bullet_on.png\" alt=\"(Active)\" title=\"Active Announcement\"  style=\"vertical-align: middle;\" /> ";
                    }
                    $table->construct_cell("<div style=\"padding-left: " . 40 * $depth . "px;\">{$icon}<a href=\"index.php?module=forum-announcements&amp;action=edit&amp;aid={$aid}\">" . htmlspecialchars_uni($announcement['subject']) . "</a></div>");
                    $table->construct_cell("<a href=\"index.php?module=forum-announcements&amp;action=edit&amp;aid={$aid}\">{$lang->edit}</a>", array("class" => "align_center"));
                    $table->construct_cell("<a href=\"index.php?module=forum-announcements&amp;action=delete&amp;aid={$aid}&amp;my_post_key={$mybb->post_code}\" onclick=\"return AdminCP.deleteConfirmation(this, '{$lang->confirm_announcement_deletion}')\">{$lang->delete}</a>", array("class" => "align_center"));
                    $table->construct_row();
                }
            }
            // Build the list for any sub forums of this forum
            if (isset($forums_by_parent[$forum['fid']])) {
                fetch_forum_announcements($table, $forum['fid'], $depth + 1);
            }
        }
    }
}