diff --git a/reference/stream/constants.xml b/reference/stream/constants.xml
index ed51b7966d..15e0951707 100644
--- a/reference/stream/constants.xml
+++ b/reference/stream/constants.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.8 $ -->
+<!-- $Revision: 1.9 $ -->
 <section id="stream.constants">
  &reftitle.constants;
  &extension.constants;
@@ -14,7 +14,7 @@
     </thead>
     <tbody>
      <row>
-      <entry><constant>STREAM_FILTER_READ</constant></entry>
+      <entry><constant>STREAM_FILTER_READ</constant> *</entry>
       <entry>
        Used with <function>stream_filter_append</function> and
        <function>stream_filter_prepend</function> to indicate
@@ -74,32 +74,32 @@
       </entry>
      </row>
      <row>
-      <entry><constant>STREAM_CLIENT_ASYNC_CONNECT</constant></entry>
+      <entry><constant>STREAM_CLIENT_ASYNC_CONNECT</constant> *</entry>
       <entry>Open client socket asynchronously.  Used with
        <function>stream_socket_client</function>.
       </entry>
      </row>
      <row>
-      <entry><constant>STREAM_CLIENT_PERSISTENT</constant></entry>
+      <entry><constant>STREAM_CLIENT_PERSISTENT</constant> *</entry>
       <entry>Client socket opened with <function>stream_socket_client</function>
        should remain persistent between page loads.
       </entry>
      </row>
      <row>
-      <entry><constant>STREAM_SERVER_BIND</constant></entry>
+      <entry><constant>STREAM_SERVER_BIND</constant> *</entry>
       <entry>Tells a stream created with <function>stream_socket_server</function>
        to bind to the specified target.  Server sockets should always include this flag.
       </entry>
      </row>
      <row>
-      <entry><constant>STREAM_SERVER_LISTEN</constant></entry>
+      <entry><constant>STREAM_SERVER_LISTEN</constant> *</entry>
       <entry>Tells a stream created with <function>stream_socket_server</function>
        and bound using the <constant>STREAM_SERVER_BIND</constant> flag to start
        listening on the socket.  Server sockets should always include this flag.
       </entry>
      </row>
      <row>
-      <entry><constant>STREAM_NOTIFY_RESOLVE</constant></entry>
+      <entry><constant>STREAM_NOTIFY_RESOLVE</constant> *</entry>
       <entry>
        A remote address required for this stream has been resolved, or the resolution
        failed.  See <parameter>severity</parameter> for an indication of which happened.
@@ -149,7 +149,7 @@
       </entry>
      </row>
      <row>
-      <entry><constant>STREAM_NOTIFY_COMPLETED</constant></entry>
+      <entry><constant>STREAM_NOTIFY_COMPLETED</constant> *</entry>
       <entry>
        There is no more data available on the stream.
       </entry>
@@ -190,6 +190,12 @@
    </tgroup>
   </informaltable>
  </para>
+ <note>
+  <simpara>
+   The constants marked with <literal>*</literal> are just avaliable
+   in PHP 5.
+  </simpara>
+ </note>
 </section>
 
 <!-- Keep this comment at the end of the file