Adding ArraUtil class

workflow/engine/src/ProcessMaker/Util/ArrayUtil.php

@@ -0,0 +1,16 @@
+<?php
+namespace ProcessMaker\Util;
+
+class ArrayUtil
+{
+    public static function boolToIntValues($array)
+    {
+        array_walk($array, function (&$v) {
+            if ($v === false) $v = 0;
+            elseif ($v === true) $v = 1;
+            elseif ($v === null) $v = 0;
+        });
+
+        return $array;
+    }
+}