diff --git a/reference/apc/functions/apc-define-constants.xml b/reference/apc/functions/apc-define-constants.xml
index ccee7f1040..30b459ca38 100644
--- a/reference/apc/functions/apc-define-constants.xml
+++ b/reference/apc/functions/apc-define-constants.xml
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.2 $ -->
+<!-- $Revision: 1.3 $ -->
 <refentry id="function.apc-define-constants">
  <refnamediv>
   <refname>apc_define_constants</refname>
   <refpurpose>
-   Defines a set of constants for later retrieval and mass-definition 
+   Defines a set of constants for retrieval and mass-definition 
   </refpurpose>
  </refnamediv>
  <refsect1 role="description">
@@ -19,7 +19,13 @@
   <para>
    <function>define</function> is notoriously slow. Since the main benefit of
    APC is to increase the performance of scripts/applications, this mechanism
-   is provided to streamline the process of mass constant definition.
+   is provided to streamline the process of mass constant definition. However,
+   This function does not perform as well as anticipated.
+  </para>
+
+  <para>
+   For a better-performing solution, try the
+   <ulink url="&url.pecl.package;hidef">hidef</ulink> extension from PECL.
   </para>
 
   <note>
@@ -92,7 +98,6 @@ $constants = array(
     'THREE' => 3,
 );
 apc_define_constants('numbers', $constants);
-apc_load_constants('numbers');
 echo ONE, TWO, THREE;
 ?>
 ]]>