Drupal 7: Utility Functions to fetch field values

function views_entity_fields($view_name, $view_display_id = 'default', $field_names = array()) {
    // Fetch Views metadata.
    $view = views_get_view($view_name);
    $results = views_get_view_result($view_name, $view_display_id);
    $entity_type = $view->base_table;
    $entity_key = $view->base_field;

    // Fetch Views-selected entities.
    $entity_ids = array();
    foreach ($results as $result) {
      $entity_ids[] = $result->$entity_key;
    }
    $entities = entity_load($entity_type, $entity_ids);

    // Fetch renderable array and rendered values of each named field and selected entity.
    $entities_data = array();
    foreach($entities as $entity) {
      $entity_data = array();
      foreach ($field_names as $field_name) {
        $field_items = field_get_items($entity_type, $entity, $field_name);
        $field_values = array();
        foreach($field_items as $field_item) {
          $field_value = field_view_value($entity_type, $entity, $field_name, $field_item);
          $field_value['#render'] = render($field_value);
          $field_values[] = $field_value;
        }
        $entity_data[$field_name] = $field_values;
      }
      $entities_data[] = $entity_data;
    }
    return $entities_data;
}

function get_bundle_field_names($bundle_type, $entity_type = 'node') {
    $field_map = field_info_field_map();
    $field_names = array();
    foreach ($field_map as $field_name => $field_info) {
        if (in_array($entity_type, array_keys($field_info['bundles'])) && in_array($bundle_type, $field_info['bundles'][$entity_type])) {
            $field_names[] = $field_name;
        }
    }
    return $field_names;
}