+ /**
+ * @brief Fetches an element array from a JSON array
+ *
+ * @param $array
+ * @param $element
+ * @param $key
+ *
+ * @return fetched element array
+ */
+ public static function fetchElementArray($array, $element, $key = '@id')
+ {
+ if (empty($array)) {
+ return null;
+ }
+
+ if (!isset($array[$element])) {
+ return null;
+ }
+
+ // If it isn't an array yet, make it to one
+ if (!is_int(key($array[$element]))) {
+ $array[$element] = [$array[$element]];
+ }
+
+ $elements = [];
+
+ foreach ($array[$element] as $entry) {
+ if (!is_array($entry)) {
+ $elements[] = $entry;
+ } elseif (!empty($entry[$key])) {
+ $elements[] = $entry[$key];
+ } elseif (!empty($entry) || !is_array($entry)) {
+ $elements[] = $entry;
+ }
+ }
+
+ return $elements;
+ }
+