> For the complete documentation index, see [llms.txt](https://danny-englander.gitbook.io/dev-patterns/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://danny-englander.gitbook.io/dev-patterns/drupal-8/fields/count-number-in-a-multi-value-field-array.md).

# Count number in a multi-value field array

```php
/**
 * Prepares variables for field templates.
 *
 * Default template: field.html.twig.
 *
 * @param array $vars
 *   An associative array containing:
 *   - element: A render element representing the field.
 *   - attributes: A string containing the attributes for the wrapping div.
 *   - title_attributes: A string containing the attributes for the title.
 */
function dev_patterns_preprocess_field(&$vars, $hook) {
  // Define vars for use as classes.
  $field_name = $vars["element"]["#field_name"];
  // Create a count var for use in the twig field template.
  if ($field_name === 'field_color_tiles_ref') {
    $vars['count'] = count($vars['items']);
  }
}
```

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