Add an example on how realpath() works on windows

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@253392 c90b9560-bf6c-de11-be94-00142212c4b1

reference/filesystem/functions/realpath.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.12 $ -->
+<!-- $Revision: 1.13 $ -->
 <refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.realpath">
  <refnamediv>
   <refname>realpath</refname>
@@ -67,6 +67,26 @@ echo realpath('./../../etc/passwd');
     <screen>
 <![CDATA[
 /etc/passwd
+]]>
+    </screen>
+   </example>
+   <example>
+    <title><function>realpath</function> on Windows</title>
+    <para>
+     On windows <function>realpath</function> will change unix style paths to
+     windows style.
+    </para>
+    <programlisting role="php">
+<![CDATA[
+<?php
+echo realpath('/windows/system32');
+?>
+]]>
+    </programlisting>
+    &example.outputs;
+    <screen>
+<![CDATA[
+C:\WINDOWS\System32
 ]]>
     </screen>
    </example>