Selecting DB element with a 'Yes' value

[jntcomputers]

I need to make a function that will make a button visible if a value in the ListingsDBElements is checked yes. I have been working on it, but where the code starts, it states there has been a problem, contact site admin. This is the code:

function renderPrintedCopy($listingID) 
{ 
// 
global $conn, $config; 
$sql_listingID = make_db_extra_safe($listingID); 
$sql = "SELECT " . $config[table_prefix] . "listingsDBElements.field_value, " 
. $config[table_prefix] . "listingsFormElements.field_name FROM " . $config 
[table_prefix] . "listingsDBElements, " . $config[table_prefix] . 
"listingsFormElements WHERE ((" . $config[table_prefix] . "listingsDBElements 
listing_id =$listingID) AND (" . $config 
[table_prefix] . "listingsDBElements.field_name = " . $config[table_prefix] . 
"listingsFormElements.field_name))"; 
$recordSet = $conn->Execute($sql); 
if ($recordSet === false) 
  { 
     log_error($sql); 
    } 
    if ($recordSet->fields[field_name] == "printed") { $printed = $recordSet-> 
fields[field_value]; } 
    { 
    if ($printed == "Yes") { 
    echo "PINRT";} 
    else { 
    echo "";} 
    }// End Offer Printed Copies
?>

The value 'Yes' will be in the field 'printed' in the ListingDBElements. Don't know what other info I need to post! Thanks!!!