How Do I Make a Drupal "repeater field" with Field Collections (D7)

<?php
/**
  * This function takes a field collection field and returns an object array that contains all of the field
  * collection entity's fields. You can then use it the same way you would a node object. For example:
  * $loaded_field_collection =  load_collection($node->your_field_collection);
  * print 'check this ' . $loaded_field_collection->your_collected_field['und'][0]['value'] . ' value, sucka!';
  */
function load_collection($entity_uri) {
  $loaded_field_collection = entity_load('field_collection_item', array(0 => $entity_uri));
  foreach ($loaded_field_collection as $loaded_field_collection_object ) {
    return $loaded_field_collection_object;
  }}
?<

<?php
/**** For this example my content type was configured like this:
  **  node
  *   - top_level_collection
  *     - second_level_collection*        - text_1
  *        - image_1
  *        - third_level_collection
  *         - text_2
  *         - image_2
  *     - second_level_collection_2
  *        - text_3
  *        - list_1
  *        - image_3
  */
// check if field collection is not empty. If content exists, do some stuff.
if (!empty($node->top_level_collection['und'])) {
  //Your custom wrapper goes here  
  print '<div class="collectin-it">';
  foreach ($node->top_level_collection['und'] as $a_top_level_collection) {
    //Use the load_collection() function to load your top level field collection's entity into an object.    
    $top_level = load_collection($a_top_level_collection['value']);
    
    //You can use Devel's dsm() to view this object in the Devel tab of your node. Comment out or delete when everything's working well.    
    dsm($top_level);
    
    //if your top_level_collection contains any fields, you can print them here using the $top_level object. Example: 
    print $top_level->your_field['und'][0]['value'];    
    
    //Use the load_collection() function to load your second level field collection entity object from the field in the top level field collection's entity object. All notes from the preceeding level apply.    
    foreach ($top_level->second_level_collection['und'] as $a_second_level_collection) {
      $second_level = load_collection($a_second_level_collection['value']);
      dsm($second_level);
      foreach ($second_level->text_1['und'] as $a_text_1) {
        print '<p>' . $a_text_1['safe_value'] . '</p>';
      }
      foreach ($second_level->image_1['und'] as $a_image_1) {
        $var = array(
          'item' => $a_image_1
          , 'image_style' => 'large'
          , 'path' => ''
        );
        
        print theme_image_formatter($var);
      }
      
      //Just like above, you can load the next level from the field in this level's field collection entity object.
      foreach ($second_level->third_level_collection['und'] as $a_third_level_collection) {
        $third_level = load_collection($a_third_level_collection['value']);
        dsm($third_level);
        foreach ($third_level->text_2['und'] as $a_text_2) {
          print '<p>' . $a_text_2['safe_value'] . '</p>';
        }
        
        foreach ($third_level->image_2['und'] as $a_image_2) {
          $var = array(
            'item' => $a_image_2
            , 'image_style' => 'medium'
            , 'path' => ''
          );
          
          print theme_image_formatter($var);
        }
      }
    }
    
    //and finally, for the above mentioned case, you can go back to the $top_level object and load that second level field collection #2.    
    foreach ($top_level->second_level_collection_2['und'] as $a_second_level_collection_2) {
      $second_level_2 = load_collection($a_second_level_collection_2['value']);
      dsm($second_level_2);
      
      foreach ($second_level_2->text_3['und'] as $a_text_3) {
        print '<p>' . $a_text_3['safe_value'] . '</p>';
      }
      
      foreach ($second_level_2->check_1['und'] as $a_check_1) {
        print '<p>Checklist value is: ' . $a_check_1['value'] . '</p>';
      }
      
      foreach ($second_level_2->image_3['und'] as $a_image_3) {
        $var = array(
          'item' => $a_image_2
          , 'image_style' => 'thumbnail'
          , 'path' => ''
        );
        
        print theme_image_formatter($var);
      }
    }
  }
  //close your custom wrapper.  
  print '</div>' . "\n";
}
?>