PHP JxBotConfig::default_predicate示例

 public static function predicate($in_name)
 {
     //print 'Get predicate: '.$in_name.'<br>';
     if ($in_name == 'id') {
         return JxBotConverse::$session_id;
     }
     if (!isset(JxBotConverse::$predicates[$in_name])) {
         $stmt = JxBotDB::$db->prepare('SELECT value FROM predicate WHERE session=? AND name=?');
         $stmt->execute(array(JxBotConverse::$session_id, $in_name));
         $row = $stmt->fetchAll(PDO::FETCH_NUM);
         if (count($row) == 0) {
             JxBotConverse::$predicates[$in_name] = JxBotConfig::default_predicate($in_name);
         } else {
             JxBotConverse::$predicates[$in_name] = $row[0][0];
         }
     }
     return JxBotConverse::$predicates[$in_name];
 }