protected static function OptGroup::doFlattenOptions in Drupal 9

Same name and namespace in other branches

1. 8 core/lib/Drupal/Core/Form/OptGroup.php \Drupal\Core\Form\OptGroup::doFlattenOptions()

Iterates over an array building a flat array with duplicate keys removed.

This function also handles cases where objects are passed as array values.

Parameters

array $array: The form options array to process.

array $options: The array of flattened options.

1 call to OptGroup::doFlattenOptions()

OptGroup::flattenOptions in core/lib/Drupal/Core/Form/OptGroup.php

Allows PHP array processing of multiple select options with the same value.

File

core/lib/Drupal/Core/Form/OptGroup.php, line 39

Class

OptGroup

Provides helpers for HTML option groups.

Namespace

Drupal\Core\Form

Code

protected static function doFlattenOptions(array $array, array &$options) {
  foreach ($array as $key => $value) {
    if (is_object($value) && isset($value->option)) {
      static::doFlattenOptions($value->option, $options);
    }
    elseif (is_array($value)) {
      static::doFlattenOptions($value, $options);
    }
    else {
      $options[$key] = $value;
    }
  }
}