diff --git a/language/oop5/visibility.xml b/language/oop5/visibility.xml
index 8c9840595c..456b5627ee 100644
--- a/language/oop5/visibility.xml
+++ b/language/oop5/visibility.xml
@@ -3,7 +3,7 @@
  <sect1 xml:id="language.oop5.visibility" xmlns="http://docbook.org/ns/docbook">
   <title>Visibility</title>
   <para>
-   The visibility of a property or method can be defined by prefixing
+   The visibility of a property, a method or (as of PHP 7.1.0) a constant can be defined by prefixing
    the declaration with the keywords <emphasis>public</emphasis>,
    <emphasis>protected</emphasis> or
    <emphasis>private</emphasis>. Class members declared public can be
@@ -189,6 +189,72 @@ $myFoo->test(); // Bar::testPrivate
    </para>
   </sect2>
 
+  <sect2 xml:id="language.oop5.visiblity-constants">
+   <title>Constant Visibility</title>
+   <para>
+    As of PHP 7.1.0, class constants may be defined as public, private, or
+    protected. Constants declared without any explicit visibility
+    keyword are defined as public.
+   </para>
+   <para>
+    <example>
+     <title>Constant Declaration as of PHP 7.1.0</title>
+     <programlisting role="php">
+<![CDATA[
+<?php
+/**
+ * Define MyClass
+ */
+class MyClass
+{
+    // Declare a public constant
+    public const MY_PUBLIC = 'public';
+
+    // Declare a protected constant
+    protected const MY_PROTECTED = 'protected';
+
+    // Declare a private constant
+    private const MY_PRIVATE = 'private';
+
+    public function foo()
+    {
+        echo self::MY_PUBLIC;
+        echo self::MY_PROTECTED;
+        echo self::MY_PRIVATE;
+    }
+}
+
+$myclass = new MyClass();
+MyClass::MY_PUBLIC; // Works
+MyClass::MY_PROTECTED; // Fatal Error
+MyClass::MY_PRIVATE; // Fatal Error
+$myclass->foo(); // Public, Protected and Private work
+
+
+/**
+ * Define MyClass2
+ */
+class MyClass2 extends MyClass
+{
+    // This is public
+    function foo2()
+    {
+        echo self::MY_PUBLIC;
+        echo self::MY_PROTECTED;
+        echo self::MY_PRIVATE; // Fatal Error
+    }
+}
+
+$myclass2 = new MyClass2;
+echo MyClass2::MY_PUBLIC; // Works
+$myclass2->foo2(); // Public and Protected work, not Private
+?>
+]]>
+     </programlisting>
+    </example>
+   </para>
+  </sect2>
+
   <sect2 xml:id="language.oop5.visibility-other-objects">
    <title>Visibility from other objects</title>
    <para>