db::database PHP Method

    static function database($database)
    {
        if (!$database) {
            return self::error(l::get('db.errors.missing_db_name', 'Please provide a database name'), true);
        }
        // check if there is a selected database
        if (self::$database == $database) {
            return true;
        }
        // select a new database
        $select = @mysql_select_db($database, self::connection());
        if (!$select) {
            return self::error(l::get('db.errors.missing_db', 'Selecting database failed'), true);
        }
        self::$database = $database;
        return $database;
    }

 /** 
  * Selects a database
  * 
  * @param  string $database
  * @return mixed
  */
 static function database($database)
 {
     if (!$database) {
         return self::error(l::get('db.errors.missing_db_name', 'Please provide a database name'), true);
     }
     // check if there is a selected database
     if (self::$database == $database) {
         return true;
     }
     // select a new database
     $select = @mysql_select_db($database, self::connection());
     if (!$select) {
         return self::error(l::get('db.errors.missing_db', 'Selecting database failed'), true);
     }
     self::$database = $database;
     return $database;
 }