diff --git a/reference/errorfunc/functions/set-error-handler.xml b/reference/errorfunc/functions/set-error-handler.xml
index a76afc72ae..1539c9a897 100644
--- a/reference/errorfunc/functions/set-error-handler.xml
+++ b/reference/errorfunc/functions/set-error-handler.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.18 $ -->
+<!-- $Revision: 1.19 $ -->
 <!-- splitted from ./en/functions/errorfunc.xml, last change in rev 1.1 -->
   <refentry id="function.set-error-handler">
    <refnamediv>
@@ -13,6 +13,7 @@
      <methodsynopsis>
       <type>string</type><methodname>set_error_handler</methodname>
       <methodparam><type>callback</type><parameter>error_handler</parameter></methodparam>
+      <methodparam choice="opt"><type>int</type><parameter>error_types</parameter></methodparam>
      </methodsynopsis>
     <para>
      Sets a user function (<parameter>error_handler</parameter>) to handle
@@ -23,6 +24,16 @@
      or when you need to trigger an error under certain conditions (using
      <function>trigger_error</function>).
     </para>
+    <para>
+     The second parameter <parameter>error_types</parameter> was introduced in
+     PHP 5 and can be used to mask the triggering of the
+     <parameter>error_handler</parameter> function just like the <link
+     linkend="ini.error-reporting">error_reporting</link> ini setting controls
+     which errors are shown. Without this mask set the
+     <parameter>error_handler</parameter> will be called for every error
+     unregardless to the setting of the <link
+     linkend="ini.error-reporting">error_reporting</link> setting.
+    </para>
     <para>
      The user function needs to accept two parameters: the error code, and a
      string describing the error. From PHP 4.0.2, three optional
@@ -137,7 +148,7 @@ $d = scale_by_log($a, -2.5);
 ]]>
       </programlisting>
       <para>
-       And when you run this sample script, the output will be :
+       And when you run this sample script, the output will be:
       </para>
       <screen>
 <![CDATA[
@@ -197,6 +208,12 @@ Aborting...<br />
      error handler cannot be called since it is not registered at that time.
      </para>
     </note>
+    <note>
+     <para>
+      The second parameter <parameter>error_types</parameter> was introduced
+      in PHP 5.
+     </para>
+    </note>
     <para>
      See also <function>error_reporting</function>,
      <function>restore_error_handler</function>,