PHP调用存储过程的问题

[liqiyou]

大家新年好,我现在用php调用mysql存储过程,出现了这样的问题.
Commands out of sync; you can't run this command now.
代码如下:
$res = mysql_query("call p_account('$V_date1','$V_date2');", $connection);
$num_rows = mysql_num_rows($res);
大家帮帮忙.

[yaw7408195]

http://blog.csdn.net/grass_ring/article/details/3499402