/**
  * Gets a string representation of the array
  * @param type $value_on_field_to_be_outputted
  * @param string $schema, possible values are ',', others can be added
  * @return string
  */
 function prepare_for_pretty_echoing($value_on_field_to_be_outputted, $schema = null)
 {
     switch ($schema) {
         case 'print_r':
             $pretty_value = print_r($value_on_field_to_be_outputted, true);
             break;
         case 'as_table':
             $pretty_value = EEH_Template::layout_array_as_table($value_on_field_to_be_outputted);
             break;
         default:
             $pretty_value = implode(", ", $value_on_field_to_be_outputted);
     }
     return $pretty_value;
 }