diff --git a/functions/mysql.xml b/functions/mysql.xml
index db1c761c73..04a555a49e 100644
--- a/functions/mysql.xml
+++ b/functions/mysql.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.104 $ -->
+<!-- $Revision: 1.105 $ -->
  <reference id="ref.mysql">
   <title>MySQL Functions</title>
   <titleabbrev>MySQL</titleabbrev>
@@ -993,6 +993,11 @@ Escaped string: Zak\'s Laptop
       </screen>
      </para>
     </example>
+    <note>
+     <para>
+      <function>mysql_real_escape_string</function> was added in PHP 4.3.0.
+     </para>
+    </note>
     <para>
      See also:
      <function>mysql_real_escape_string</function>