diff --git a/chapters/config.xml b/chapters/config.xml
index 661bf7704c..e2d654f8fb 100644
--- a/chapters/config.xml
+++ b/chapters/config.xml
@@ -1,5 +1,5 @@
 <?xml encoding="iso-8859-1"?>
-<!-- $Revision: 1.22 $ -->
+<!-- $Revision: 1.23 $ -->
  <chapter id="configuration">
   <title>Configuration</title>
 
@@ -898,6 +898,38 @@ include_path=".;c:\www\phplib"
       </listitem>
      </varlistentry>
      
+     <varlistentry id="ini.mysql.default-port">
+      <term>
+       <parameter>mysql.default_port</parameter>
+       <type>string</type>
+      </term>
+      <listitem>
+       <para>
+        The default TCP port number to use when connecting to
+        the database server if no other port is specified. If
+        no default is specified, the port will be obtained
+        from the <literal>MYSQL_TCP_PORT</literal> environment
+        variable, the <literal>mysql-tcp</literal> entry in
+        <filename>/etc/services</filename> or the compile-time
+        <literal>MYSQL_PORT</literal> constant, in that order. Win32
+        will only use the <literal>MYSQL_PORT</literal> constant.
+       </para>
+      </listitem>
+     </varlistentry>
+     
+     <varlistentry id="ini.mysql.default-socket">
+      <term>
+       <parameter>mysql.default_socket</parameter>
+       <type>string</type>
+      </term>
+      <listitem>
+       <para>
+        The default socket name to use when connecting to a local
+        database server if no other socket name is specified.
+       </para>
+      </listitem>
+     </varlistentry>
+     
      <varlistentry id="ini.mysql.max-persistent">
       <term>
        <parameter>mysql.max_persistent</parameter>