protected static function WebformArrayHelper::getKey in Webform 6.x

Same name and namespace in other branches

1. 8.5 src/Utility/WebformArrayHelper.php \Drupal\webform\Utility\WebformArrayHelper::getKey()

Get next or prev(ious) array key.

Parameters

array $array: An array.

string $key: A array key.

string $direction: The direction of the key to retrieve.

Return value

string|null The next or prev(ious) array key or NULL if no key is found.

See also

http://stackoverflow.com/questions/6407795/get-the-next-array-item-using...

2 calls to WebformArrayHelper::getKey()

WebformArrayHelper::getNextKey in src/Utility/WebformArrayHelper.php

Get the next key in an array.

WebformArrayHelper::getPreviousKey in src/Utility/WebformArrayHelper.php

Get the prev(ious) key in an array.

File

src/Utility/WebformArrayHelper.php, line 176

Class

WebformArrayHelper

Provides helper to operate on arrays.

Namespace

Drupal\webform\Utility

Code

protected static function getKey(array $array, $key, $direction) {
  $array_keys = array_keys($array);
  $array_key = reset($array_keys);
  do {
    if ($array_key == $key) {
      return $direction($array_keys);
    }
  } while ($array_key = next($array_keys));
  return NULL;
}