diff --git a/reference/xsl/functions/xsl-xsltprocessor-set-parameter.xml b/reference/xsl/functions/xsl-xsltprocessor-set-parameter.xml
index 7161e893c3..c3b76ed0d9 100644
--- a/reference/xsl/functions/xsl-xsltprocessor-set-parameter.xml
+++ b/reference/xsl/functions/xsl-xsltprocessor-set-parameter.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.4 $ -->
+<!-- $Revision: 1.5 $ -->
 <refentry id="function.xsl-xsltprocessor-set-parameter">
  <refnamediv>
   <refname>XSLTProcessor->setParameter()</refname>
@@ -10,11 +10,18 @@
   <classsynopsis>
    <ooclass><classname>XSLTProcessor</classname></ooclass>
    <methodsynopsis>
-    <type>bool</type>
-    <methodname>setParameter</methodname>
+    <type>bool</type><methodname>setParameter</methodname>
     <methodparam><type>string</type><parameter>namespace</parameter></methodparam>
-    <methodparam><type>mixed</type><parameter>name</parameter></methodparam>
-    <methodparam choice="opt"><type>string</type><parameter>value</parameter></methodparam>
+    <methodparam><type>string</type><parameter>name</parameter></methodparam>
+    <methodparam><type>string</type><parameter>value</parameter></methodparam>
+   </methodsynopsis>
+  </classsynopsis>
+  <classsynopsis>
+   <ooclass><classname>XSLTProcessor</classname></ooclass>
+   <methodsynopsis>
+    <type>bool</type><methodname>setParameter</methodname>
+    <methodparam><type>string</type><parameter>namespace</parameter></methodparam>
+    <methodparam><type>array</type><parameter>options</parameter></methodparam>
    </methodsynopsis>
   </classsynopsis>
   <para>
@@ -28,7 +35,7 @@
   <para>
    <variablelist>
     <varlistentry>
-     <term><parameter>namespaceURI</parameter></term>
+     <term><parameter>namespace</parameter></term>
      <listitem>
       <para>
        The namespace URI of the XSLT parameter.
@@ -36,12 +43,10 @@
      </listitem>
     </varlistentry>
     <varlistentry>
-     <term><parameter>localName</parameter></term>
+     <term><parameter>name</parameter></term>
      <listitem>
       <para>
-       The local name of the XSLT parameter. This can be either a string
-       representing the parameter name or an array of 
-       <literal>name =&gt; value</literal> pairs.
+       The local name of the XSLT parameter.
       </para>
      </listitem>
     </varlistentry>
@@ -53,6 +58,15 @@
       </para>
      </listitem>
     </varlistentry>
+    <varlistentry>
+     <term><parameter>options</parameter></term>
+     <listitem>
+      <para>
+       An array of  <literal>name =&gt; value</literal> pairs. This syntax is
+       available since PHP 5.1.0.
+      </para>
+     </listitem>
+    </varlistentry>
    </variablelist>
   </para>
  </refsect1>