diff --git a/reference/pcre/functions/preg-replace.xml b/reference/pcre/functions/preg-replace.xml
index 3ff7d6108e..cbba4732b6 100644
--- a/reference/pcre/functions/preg-replace.xml
+++ b/reference/pcre/functions/preg-replace.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.12 $ -->
+<!-- $Revision: 1.13 $ -->
 <!-- splitted from ./en/functions/pcre.xml, last change in rev 1.2 -->
   <refentry id="function.preg-replace">
    <refnamediv>
@@ -247,6 +247,25 @@ $replace = array ("",
 
 $text = preg_replace($search, $replace, $document);
 ?>
+]]>
+      </programlisting>
+     </example>
+    </para>
+    <para>
+     <example>
+      <title>Strip whitespace</title>
+      <para>
+       This example strips excess whitespace from a string.
+      </para>
+      <programlisting role="php">
+<![CDATA[
+<?php
+$str = 'foo   o';
+$str = preg_replace('/\s\s+/', ' ', $str);
+
+// This will be 'foo o' now
+echo $str;
+?>
 ]]>
       </programlisting>
      </example>