// (in other words, there's no point in propagating blank filters).
foreach ($process_params as $field_name => $field_value) {
$suffix_position = strrpos($field_name, '_');
// (in other words, there's no point in propagating blank filters).
foreach ($process_params as $field_name => $field_value) {
$suffix_position = strrpos($field_name, '_');