diff --git a/reference/shmop/functions/shmop-open.xml b/reference/shmop/functions/shmop-open.xml
index 377c3a380d..aa257d9c7a 100644
--- a/reference/shmop/functions/shmop-open.xml
+++ b/reference/shmop/functions/shmop-open.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.2 $ -->
+<!-- $Revision: 1.3 $ -->
 <!-- splitted from ./en/functions/shmop.xml, last change in rev 1.12 -->
   <refentry id="function.shmop-open">
    <refnamediv>
@@ -33,22 +33,22 @@
        <simpara>
         "c" for create (sets IPC_CREATE)
         use this flag when you need to create a new shared memory segment or if a
-	segment with the same key exists, try to open it for read and write
+    segment with the same key exists, try to open it for read and write
        </simpara>
       </listitem>
       <listitem>
        <simpara>
         "w" for read &amp; write access
-	use this flag when you need to read and write to a shared memory segment, use this flag
-	in most cases.
+    use this flag when you need to read and write to a shared memory segment, use this flag
+    in most cases.
        </simpara>
       </listitem>
       <listitem>
        <simpara>
         "n" create a new memory segment (sets IPC_CREATE|IPC_EXCL)
-	use this flag when you want to create a new shared memory segment but if one
-	already exists with the same flag, fail. This is useful for security purposes, using this you
-	can prevent race condition exploits.
+    use this flag when you want to create a new shared memory segment but if one
+    already exists with the same flag, fail. This is useful for security purposes, using this you
+    can prevent race condition exploits.
        </simpara>
       </listitem>
      </itemizedlist>
@@ -70,14 +70,16 @@
       <programlisting role="php">
 <![CDATA[
 <?php
-$shm_id = shmop_open(0x0fff, "c", 0644, 100);
+$shm_key = ftok(__FILE__,'t');
+$shm_id = shmop_open($shm_key, "c", 0644, 100);
 ?>
 ]]>
       </programlisting>
      </example>
     </para>
     <para>
-     This example opened a shared memory block with a system id of 0x0fff.
+     This example opened a shared memory block with a system id returned by 
+     <function>ftok</function>.
     </para>
    </refsect1>
   </refentry>