diff --git a/reference/sockets/functions/socket-set-block.xml b/reference/sockets/functions/socket-set-block.xml
index 6e6d5aa1b2..45f1bf5ae3 100644
--- a/reference/sockets/functions/socket-set-block.xml
+++ b/reference/sockets/functions/socket-set-block.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.1 $ -->
+<!-- $Revision: 1.2 $ -->
   <refentry id="function.socket-set-block">
    <refnamediv>
     <refname>socket_set_block</refname>
@@ -13,9 +13,38 @@
       <type>bool</type><methodname>socket_set_block</methodname>
       <methodparam><type>resource</type><parameter>socket</parameter></methodparam>
      </methodsynopsis>
-    
-    &warn.undocumented.func;
-    
+    <para>
+     The <function>socket_set_block</function> function removes the O_NONBLOCK flag 
+     on the socket specified by the <parameter>socket</parameter> parameter.
+    </para>
+    <para>
+    <example>
+    <title><function>socket_set_block</function> example</title>
+    <programlisting role="php">
+<![CDATA[
+<?php
+$port = 9090;
+if(!$socket = socket_create_listen($port))
+{
+    echo socket_strerror(socket_last_error());
+}
+if(!socket_set_option($socket, SOL_SOCKET, SO_REUSEADDR, 1))
+{
+    echo socket_strerror(socket_last_error());
+}
+if(!socket_set_nonblock($socket))       //Socket $socket is now nonblocking
+{
+    echo socket_strerror(socket_last_error());
+}
+if(!socket_set_block($socket))          //Socket $socket is now blocking
+{
+    echo socket_strerror(socket_last_error());
+}
+?>
+]]>
+    </programlisting>
+    </example>
+    </para>
     <para>
      &return.success;
     </para>