Programmatically adding a field collection item to a node

full.php

<?php
function my_function_name_add_image_to_field_collection($nid, $fid){
   // Load target node
   $node = node_load($nid);

   // Create a new field collection 
   $field_collection_item = entity_create('field_collection_item', array('field_name' => 'my_field_collection_item_name'));

   // Prepare link field
   $link = array(
      'title' => "",
      'url' => "",
      'attributes' => array(
         'title' => "",
      ),
   );

   // Prepare file 
   $file = (array)file_load($fid);
   $file['display'] = "1";

   // Load items into field collection
   $field_collection_item->field_image[LANGUAGE_NONE][] = $file;
   $field_collection_item->field_link[LANGUAGE_NONE][] = $link;

   // Save field collection item
   $field_collection_item->setHostEntity('node', $node);
   $field_collection_item->save(TRUE);
   
   node_save($node);
}
?>