如何在一个存储过程中调用多个单独的SQL查询

I have stored procedure that I created in MySQL and want PHP to call that stored procedure.

Here is my stored procedure:

DELIMITER $$

DROP FUNCTION IF EXISTS `getNodeName` $$
CREATE FUNCTION `getTreeNodeName`(`nid` int) RETURNS varchar(25) CHARSET utf8
BEGIN
 DECLARE nodeName varchar(25);

 SELECT name into nodeName FROM tree
 WHERE id = nid;

 SELECT user FROM user_master
 WHERE status = 'Y';

END $$

DELIMITER ;

i'm getting first query result but i can't able to get second query result anyone help me...