public static function WebformArrayHelper::getDuplicates in Webform 6.x
Same name and namespace in other branches
- 8.5 src/Utility/WebformArrayHelper.php \Drupal\webform\Utility\WebformArrayHelper::getDuplicates()
Get duplicate values in an array.
Parameters
array $array: An array.
Return value
array An array container duplicate values.
See also
https://magp.ie/2011/02/02/find-duplicates-in-an-array-with-php/
1 call to WebformArrayHelper::getDuplicates()
- WebformElementBase::validateUniqueMultiple in src/
Plugin/ WebformElementBase.php - Form API callback. Validate element #unique multiple values.
File
- src/
Utility/ WebformArrayHelper.php, line 287
Class
- WebformArrayHelper
- Provides helper to operate on arrays.
Namespace
Drupal\webform\UtilityCode
public static function getDuplicates(array $array) {
return array_unique(array_diff_assoc($array, array_unique($array)));
}