From f004f576e7329b583dd41cf7e393efd5139bd5a3 Mon Sep 17 00:00:00 2001
From: "Christoph M. Becker" <cmbecker69@gmx.de>
Date: Sat, 7 May 2022 13:20:49 +0200
Subject: [PATCH] Fix GH-1575: get_parent_class may return false

---
 reference/classobj/functions/get-parent-class.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/reference/classobj/functions/get-parent-class.xml b/reference/classobj/functions/get-parent-class.xml
index 66225840ba..7243dd8f21 100644
--- a/reference/classobj/functions/get-parent-class.xml
+++ b/reference/classobj/functions/get-parent-class.xml
@@ -8,7 +8,7 @@
  <refsect1 role="description">
   &reftitle.description;
   <methodsynopsis>
-   <type>string</type><methodname>get_parent_class</methodname>
+   <type class="union"><type>string</type><type>false</type></type><methodname>get_parent_class</methodname>
    <methodparam choice="opt"><type class="union"><type>object</type><type>string</type></type><parameter>object_or_class</parameter></methodparam>
   </methodsynopsis>
   <para>