diff --git a/language/types/boolean.xml b/language/types/boolean.xml
index bd6467f40..b89274ce3 100644
--- a/language/types/boolean.xml
+++ b/language/types/boolean.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- EN-Revision: 4657c1173e6b3852cdc8db4fc64f380d10ebae0c Maintainer: hholzgra  Status: ready -->
+<!-- EN-Revision: ee66d210fb1dd5799fbca9881c6ac2560a19579d Maintainer: hholzgra  Status: ready -->
 <!-- Reviewed: yes -->
 <!-- Rev-Revision: 346c0bd13f99888108cbefeb9c7c17923cac1a47 Reviewer: samesch -->
 <sect1 xml:id="language.types.boolean">
@@ -22,7 +22,10 @@
    <programlisting role="php">
 <![CDATA[
 <?php
+
 $foo = True; // weist $foo den Wert TRUE zu
+
+var_dump($foo); // bool(true)
 ?>
 ]]>
    </programlisting>
@@ -39,6 +42,7 @@ $foo = True; // weist $foo den Wert TRUE zu
    <programlisting role="php">
 <![CDATA[
 <?php
+
 $action = "show_version";
 $show_separators = true;