diff --git a/ext/spl/tests/array_023.phpt b/ext/spl/tests/array_023.phpt
new file mode 100644
index 00000000000..a4446048dfb
--- /dev/null
+++ b/ext/spl/tests/array_023.phpt
@@ -0,0 +1,87 @@
+--TEST--
+Testing class extending to ArrayObject and serialize
+--FILE--
+<?php
+
+class Name extends ArrayObject
+{
+    public $var = 'a';
+    protected $bar = 'b';
+    private $foo = 'c';
+}
+
+$a = new Name();
+var_dump($a);
+var_dump($a->var);
+
+$a = unserialize(serialize($a));
+
+var_dump($a);
+var_dump($a->var);
+
+class Bla extends ArrayObject
+{
+    public $var = 'aaa';
+    protected $bar = 'bbb';
+    private $foo = 'ccc';
+}
+
+$a = new Bla();
+var_dump($a);
+var_dump($a->var);
+
+$a = unserialize(serialize($a));
+
+var_dump($a);
+var_dump($a->var);
+
+?>
+--EXPECT--
+object(Name)#1 (4) {
+  ["var"]=>
+  string(1) "a"
+  ["bar":protected]=>
+  string(1) "b"
+  ["foo":"Name":private]=>
+  string(1) "c"
+  ["storage":"ArrayObject":private]=>
+  array(0) {
+  }
+}
+string(1) "a"
+object(Name)#2 (4) {
+  ["var"]=>
+  string(1) "a"
+  ["bar":protected]=>
+  string(1) "b"
+  ["foo":"Name":private]=>
+  string(1) "c"
+  ["storage":"ArrayObject":private]=>
+  array(0) {
+  }
+}
+string(1) "a"
+object(Bla)#1 (4) {
+  ["var"]=>
+  string(3) "aaa"
+  ["bar":protected]=>
+  string(3) "bbb"
+  ["foo":"Bla":private]=>
+  string(3) "ccc"
+  ["storage":"ArrayObject":private]=>
+  array(0) {
+  }
+}
+string(3) "aaa"
+object(Bla)#2 (4) {
+  ["var"]=>
+  string(3) "aaa"
+  ["bar":protected]=>
+  string(3) "bbb"
+  ["foo":"Bla":private]=>
+  string(3) "ccc"
+  ["storage":"ArrayObject":private]=>
+  array(0) {
+  }
+}
+string(3) "aaa"