diff --git a/NEWS b/NEWS
index c7d75f15037..d474e9fd086 100644
--- a/NEWS
+++ b/NEWS
@@ -20,6 +20,8 @@ PHP                                                                        NEWS
 - SPL:
   . Fixed bug #75717 (RecursiveArrayIterator does not traverse arrays by
     reference). (Nikita)
+  . Fixed bug #75242 (RecursiveArrayIterator doesn't have constants from parent
+    class). (Nikita)
 
 04 Jan 2018, PHP 7.1.13
 
diff --git a/ext/spl/spl_array.c b/ext/spl/spl_array.c
index 1be55d785b7..105fb269d6e 100644
--- a/ext/spl/spl_array.c
+++ b/ext/spl/spl_array.c
@@ -1999,16 +1999,16 @@ PHP_MINIT_FUNCTION(spl_array)
 	memcpy(&spl_handler_ArrayIterator, &spl_handler_ArrayObject, sizeof(zend_object_handlers));
 	spl_ce_ArrayIterator->get_iterator = spl_array_get_iterator;
 
-	REGISTER_SPL_SUB_CLASS_EX(RecursiveArrayIterator, ArrayIterator, spl_array_object_new, spl_funcs_RecursiveArrayIterator);
-	REGISTER_SPL_IMPLEMENTS(RecursiveArrayIterator, RecursiveIterator);
-	spl_ce_RecursiveArrayIterator->get_iterator = spl_array_get_iterator;
-
 	REGISTER_SPL_CLASS_CONST_LONG(ArrayObject,   "STD_PROP_LIST",    SPL_ARRAY_STD_PROP_LIST);
 	REGISTER_SPL_CLASS_CONST_LONG(ArrayObject,   "ARRAY_AS_PROPS",   SPL_ARRAY_ARRAY_AS_PROPS);
 
 	REGISTER_SPL_CLASS_CONST_LONG(ArrayIterator, "STD_PROP_LIST",    SPL_ARRAY_STD_PROP_LIST);
 	REGISTER_SPL_CLASS_CONST_LONG(ArrayIterator, "ARRAY_AS_PROPS",   SPL_ARRAY_ARRAY_AS_PROPS);
 
+	REGISTER_SPL_SUB_CLASS_EX(RecursiveArrayIterator, ArrayIterator, spl_array_object_new, spl_funcs_RecursiveArrayIterator);
+	REGISTER_SPL_IMPLEMENTS(RecursiveArrayIterator, RecursiveIterator);
+	spl_ce_RecursiveArrayIterator->get_iterator = spl_array_get_iterator;
+
 	REGISTER_SPL_CLASS_CONST_LONG(RecursiveArrayIterator, "CHILD_ARRAYS_ONLY", SPL_ARRAY_CHILD_ARRAYS_ONLY);
 
 	return SUCCESS;
diff --git a/ext/spl/tests/bug75242.phpt b/ext/spl/tests/bug75242.phpt
new file mode 100644
index 00000000000..0ffd783e475
--- /dev/null
+++ b/ext/spl/tests/bug75242.phpt
@@ -0,0 +1,36 @@
+--TEST--
+Bug #75242: RecursiveArrayIterator doesn't have constants from parent class
+--FILE--
+<?php
+
+class Foo extends ArrayIterator { }
+
+$r = new ReflectionClass(Foo::class);
+var_dump($r->getConstants());
+$r = new ReflectionClass(ArrayIterator::class);
+var_dump($r->getConstants());
+$r = new ReflectionClass(RecursiveArrayIterator::class);
+var_dump($r->getConstants());
+
+?>
+--EXPECT--
+array(2) {
+  ["STD_PROP_LIST"]=>
+  int(1)
+  ["ARRAY_AS_PROPS"]=>
+  int(2)
+}
+array(2) {
+  ["STD_PROP_LIST"]=>
+  int(1)
+  ["ARRAY_AS_PROPS"]=>
+  int(2)
+}
+array(3) {
+  ["STD_PROP_LIST"]=>
+  int(1)
+  ["ARRAY_AS_PROPS"]=>
+  int(2)
+  ["CHILD_ARRAYS_ONLY"]=>
+  int(4)
+}