9dian房间guan理系统(6)

 * @param int $priId
 * @param string $fields
 * @return mixed
 */
public static function findById($tabName,$priId,$fields='*'){
$sql='SELECT %s FROM %s WHERE id=%d';
return self::getRow(sprintf($sql,self::parseFields($fields),$tabName,$priId));

}
/**
 * 执行普通查询
 * @param unknown $tables
 * @param string $where
 * @param string $fields
 * @param string $group
 * @param string $having
 * @param string $order
 * @param string $limit
 * @return Ambigous <unknown, unknown, multitype:>