Question

I am trying to gather some information from a MySQL database and am having some issues. I can execute either of my two queries independently, but when I try to execute them both my code fails with the error Call to a member function bind_param() on a non-object in /api/boxes.php on line 20 where Line 20 is $queryFacet = $db->prepare("SELECT item_name FROM kf_facet_items WHERE id IN (SELECT facet_value_id FROM kf_box_data WHERE box_id = ?)");

Here is my code:

$query = $db->prepare("SELECT DISTINCT b.id, b.ownerID, b.transactionID, b.post_date, b.description FROM kf_boxes b JOIN kf_box_data d ON b.id = d.box_id");
$query->execute();
$query->bind_result($id, $owner, $transactionID, $post_date, $description);

while ($query->fetch()) {
    $result['id'] = $id;
    $result['transaction'] = $transactionID;
    $result['post_date'] = $post_date;
    $result['description'] = $description;
    $queryFacet = $db->prepare("SELECT item_name FROM kf_facet_items WHERE id IN (SELECT facet_value_id FROM kf_box_data WHERE box_id = ?)");
    $queryFacet->bind_param('s',$id);
    $queryFacet->execute();
    $queryFacet->bind_result($item_name);
        while ($queryFacet->fetch()) {
            $facets['name'] = $item_name;
            $result['facets'] = $facets;
        }
    $output[] = $result;
}

Anyone have any ideas on what is causing this and more importantly, how to solve it?

Answer 1

Problem solved. I wasn’t closing my first statement, which threw mysqli for a tizzy. Adding $query->close(); after the while statement, then adding a for loop for the 2nd query worked as expected.