在查询中php存储过程错误

Here's the code:

这是代码:

<?php
    $sql = mysql_query($db, "CALL selectproducts()");
    if( $sql === FALSE ) {
        die('Query failed returning error: '. mysql_error());
    } else {
        while($row=mysql_fetch_array($sql))
        {
            $id=$row['prodname'];
            $name=$row['proddescription'];
            $desc=$row['prodsupplier'];
            $supp=$row['proddate'];
            $date=$row['prodprice'];
            $qtyleft=$row['prodquantity'];
<?php
    $sql = mys