diff --git a/reference/spl/functions/class-implements.xml b/reference/spl/functions/class-implements.xml
index 81be83d484..e2e7d29bc4 100755
--- a/reference/spl/functions/class-implements.xml
+++ b/reference/spl/functions/class-implements.xml
@@ -1,5 +1,5 @@
 <?xml version='1.0' encoding='iso-8859-1'?>
-<!-- $Revision: 1.6 $ -->
+<!-- $Revision: 1.7 $ -->
 <refentry id="function.class-implements">
  <refnamediv>
   <refname>class_implements</refname>
@@ -32,6 +32,16 @@
       </para>
      </listitem>
     </varlistentry>
+    <varlistentry>
+     <term><parameter>autoload</parameter></term>
+     <listitem>
+      <para>
+       Whether to allow this function to load the class automatically through
+       the <link linkend="language.oop5.autoload">__autoload</link> magic
+       method. Defaults to &true;.
+      </para>
+     </listitem>
+    </varlistentry>
    </variablelist>
   </para>
  </refsect1>
@@ -59,7 +69,8 @@
       <row>
        <entry>5.1.0</entry>
        <entry>
-        Added the option to pass the parameter as a string
+        Added the option to pass the <parameter>class</parameter> parameter as
+        a string. Added the <parameter>autoload</parameter> parameter.
        </entry>
       </row>
      </tbody>
@@ -82,6 +93,17 @@ class bar implements foo {}
 
 print_r(class_implements(new bar));
 
+// since PHP 5.1 you may also specify the parameter as a string
+print_r(class_implements('bar'));
+
+
+function __autoload($class_name) {
+   require_once $class_name . '.php';
+}
+
+// use __autoload to load the 'not-loaded' class
+print_r(class_implements('not-loaded', true));
+
 ?>
 ]]>
     </programlisting>
diff --git a/reference/spl/functions/class-parents.xml b/reference/spl/functions/class-parents.xml
index 5efe58fb05..bf72a59c88 100755
--- a/reference/spl/functions/class-parents.xml
+++ b/reference/spl/functions/class-parents.xml
@@ -1,5 +1,5 @@
 <?xml version='1.0' encoding='iso-8859-1'?>
-<!-- $Revision: 1.4 $ -->
+<!-- $Revision: 1.5 $ -->
 <refentry id="function.class-parents">
  <refnamediv>
   <refname>class_parents</refname>
@@ -28,7 +28,17 @@
      <term><parameter>class</parameter></term>
      <listitem>
       <para>
-       An object or a string of the class
+       An object (class instance) or a string (class name).
+      </para>
+     </listitem>
+    </varlistentry>
+    <varlistentry>
+     <term><parameter>autoload</parameter></term>
+     <listitem>
+      <para>
+       Whether to allow this function to load the class automatically through
+       the <link linkend="language.oop5.autoload">__autoload</link> magic
+       method. Defaults to &true;.
       </para>
      </listitem>
     </varlistentry>
@@ -58,7 +68,8 @@
       <row>
        <entry>5.1.0</entry>
        <entry>
-        Added the option to pass the parameter as a string
+        Added the option to pass the <parameter>class</parameter> parameter as
+        a string. Added the <parameter>autoload</parameter> parameter.
        </entry>
       </row>
      </tbody>
@@ -81,6 +92,16 @@ class bar extends foo {}
 
 print_r(class_parents(new bar));
 
+// since PHP 5.1 you may also specify the parameter as a string
+print_r(class_parents('bar'));
+
+
+function __autoload($class_name) {
+   require_once $class_name . '.php';
+}
+
+// use __autoload to load the 'not-loaded' class
+print_r(class_parents('not-loaded', true));
 ?>
 ]]>
     </programlisting>