php 5 调用mysql 5 存储过程时出错,请高手们帮帮忙!!
$con=mysql_connect("localhost","root","q1w2e3r4");
mysql_select_db("db1",$con);
$result=mysql_query("call p20()");
while ($arr=mysql_fetch_array($result))
{
echo $arr["s1"] ."<br>";
}
错误信息:Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in c:\Inetpub\wwwroot\procedure1.php on line 5