Stored procedure causes “Commands out of sync” on the next query

Question

I am running a query with a mysql stored procedure :

$AddProf_qr = mysql_query(\"call AddStudent(\'$d_Pass\', \'$d_Titl\', \'$d_Firs\', \'$d_Midd\',  \'$d_La         


        

Answer 1

mysql_free_result(client->res);

while (mysql_more_results(client->conn))
{
    mysql_next_result(client->conn);
}

This did the charm for me :)

Answer 2

Your stored procedure is returning multiple resultsets. See this post

Solution?

• Use mysqli_multi_query
• Stop using the ancient mysql library - the i in mysqli stands for "Improved" - with good reason.

Answer 3

Check out here: http://us3.php.net/manual/en/function.mysql-query.php In comments, one guy claims that he made it work by setting connection flag to MYSQL_MULTI_RESULTS (131072).

But it would be much better to use mysqli...

Answer 4

@DMin Yes that's would work, but you'll crash the server sooner or later. Just make the math, one resquest to a page that makes 3 * number of procedures to database! Just think about it!

[UPDATE] solution:

$aCategory = array();
$it=0;
$res = $mysqli->multi_query( "call ListCategory();" );
if( $res ) {
  do {
    if ($result = $mysqli->store_result()) { 

        while( $row = $result->fetch_row() ) {
                $aCategory[$it] =$row;
                $it= $it + 1;
        }
        $result->close();
    }
  } while( $mysqli->next_result() );
}

foreach($aCategory as $row){
    echo . $row[0] . " - " . $row[1] . "<br />";
} 

Just wanted to add that you are ready to call the next Routine.

PS: By this way I couldn't use

echo $aCategory['category_id'] ; 
//or 
echo $aCategory->category_id;
//just
echo $aCategory[0] 

Answer 5

Result sets returned from a stored procedure cannot be fetched correctly using mysqli_query(). The mysqli_query() function combines statement execution and fetching the first result set into a buffered result set, if any. However, there are additional stored procedure result sets hidden from the user which cause mysqli_query() to fail returning the user expected result sets.

Result sets returned from a stored procedure are fetched using mysqli_real_query() or mysqli_multi_query(). Both functions allow fetching any number of result sets returned by a statement, such as CALL.

look at official manual