/**
* Get a random page
*
* @param int $a_wiki_id Wiki ID
*/
static function getRandomPage($a_wiki_id)
{
global $ilDB;
$cnt = ilWikiPage::countPages($a_wiki_id);
if ($cnt < 1) {
return "";
}
$rand = rand(1, $cnt);
// delete record of table il_wiki_data
$ilDB->setLimit(1, $rand);
$query = "SELECT title FROM il_wiki_page" . " WHERE wiki_id = " . $ilDB->quote($a_wiki_id, "integer");
$s = $ilDB->query($query);
$r = $ilDB->fetchAssoc($s);
return $r["title"];
}