--- /dev/null
+<?php
+
+/*
+ * This file is a part of dflydev/dot-access-data.
+ *
+ * (c) Dragonfly Development Inc.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Dflydev\DotAccessData;
+
+class Util
+{
+ /**
+ * Test if array is an associative array
+ *
+ * Note that this function will return true if an array is empty. Meaning
+ * empty arrays will be treated as if they are associative arrays.
+ *
+ * @param array $arr
+ *
+ * @return boolean
+ */
+ public static function isAssoc(array $arr)
+ {
+ return (is_array($arr) && (!count($arr) || count(array_filter(array_keys($arr),'is_string')) == count($arr)));
+ }
+
+ /**
+ * Merge contents from one associtative array to another
+ *
+ * @param array $to
+ * @param array $from
+ * @param bool $clobber
+ */
+ public static function mergeAssocArray($to, $from, $clobber = true)
+ {
+ if ( is_array($from) ) {
+ foreach ($from as $k => $v) {
+ if (!isset($to[$k])) {
+ $to[$k] = $v;
+ } else {
+ $to[$k] = self::mergeAssocArray($to[$k], $v, $clobber);
+ }
+ }
+
+ return $to;
+ }
+
+ return $clobber ? $from : $to;
+ }
+}