Possible to not display exposed filter if it's empty?

This did not work for me.
Here is my code:

function views_filters_selective_search_fields($haystack, &$return){
   foreach ($haystack as $k => $v) {
	 if(!isset($pk)){
		static $pk = '';
	}
	if(!isset($pv)){
		static $pv = '';
	}
    if (is_array($v)) {
		$pv = $v;
		$pk = $k; 
        views_filters_selective_search_fields($v, $return);
    } else {
        if($v === 'select'){
			$options = $pv['#options'];
			if(empty($options)){
				//$return[] = array($pk => $pv);
				$return[] = $pk;
			}
        }
      }
   }
}
function views_filters_selective_removeRecursive($haystack,$needle){
    if(is_array($haystack)) {
		if(isset($haystack[$needle])){
			unset($haystack[$needle]);
		}
        foreach ($haystack as $k=>$value) {
            $haystack[$k] = views_filters_selective_removeRecursive($value,$needle);
        }
    }
    return $haystack;
}



/**
 * Implements hook_form_views_exposed_form_alter().
 */
function views_filters_selective_form_views_exposed_form_alter(&$form, &$form_state, $form_id) {
 	views_filters_selective_search_fields($form, $return);
	$empty_filters = $return;
	if(is_array($empty_filters)){
		$new = $form;
		foreach ($empty_filters as $v){
			watchdog("v", print_r($v, true));
			$new = views_filters_selective_removeRecursive($new,$v);
		}
		$form = $new;
	}
}function views_filters_selective_search_fields($haystack, &$return){
   foreach ($haystack as $k => $v) {
	 if(!isset($pk)){
		static $pk = '';
	}
	if(!isset($pv)){
		static $pv = '';
	}
    if (is_array($v)) {
		$pv = $v;
		$pk = $k; 
        views_filters_selective_search_fields($v, $return);
    } else {
        if($v === 'select'){
			$options = $pv['#options'];
			if(empty($options)){
				//$return[] = array($pk => $pv);
				$return[] = $pk;
			}
        }
      }
   }
}
function views_filters_selective_removeRecursive($haystack,$needle){
    if(is_array($haystack)) {
		if(isset($haystack[$needle])){
			unset($haystack[$needle]);
		}
        foreach ($haystack as $k=>$value) {
            $haystack[$k] = views_filters_selective_removeRecursive($value,$needle);
        }
    }
    return $haystack;
}



/**
 * Implements hook_form_views_exposed_form_alter().
 */
function views_filters_selective_form_views_exposed_form_alter(&$form, &$form_state, $form_id) {
 	views_filters_selective_search_fields($form, $return);
	$empty_filters = $return;
	if(is_array($empty_filters)){
		$new = $form;
		foreach ($empty_filters as $v){
			watchdog("v", print_r($v, true));
			$new = views_filters_selective_removeRecursive($new,$v);
		}
		$form = $new;
	}
}