diff --git a/reference/array/functions/array-product.xml b/reference/array/functions/array-product.xml
index e64f976067..6d103c1ae4 100644
--- a/reference/array/functions/array-product.xml
+++ b/reference/array/functions/array-product.xml
@@ -48,6 +48,7 @@
 
 $a = array(2, 4, 6, 8);
 echo "product(a) = " . array_product($a) . "\n";
+echo "product(array()) = " . array_product(array()) . "\n";
 
 ?>
 ]]>
@@ -56,6 +57,7 @@ echo "product(a) = " . array_product($a) . "\n";
     <screen>
 <![CDATA[
 product(a) = 384
+product(array()) = 1
 ]]>
     </screen>
    </example>