diff --git a/reference/pgsql/functions/pg-client-encoding.xml b/reference/pgsql/functions/pg-client-encoding.xml
index 94d87f7f90..e4e8e4362f 100644
--- a/reference/pgsql/functions/pg-client-encoding.xml
+++ b/reference/pgsql/functions/pg-client-encoding.xml
@@ -24,7 +24,7 @@
   </para>
   <note>
    <para>
-    This function requires PHP 4.0.3 or higher and PostgreSQL 7.0 or
+    This function requires PostgreSQL 7.0 or
     higher. If libpq is compiled without multibyte encoding support,
     <function>pg_client_encoding</function> always returns
     <literal>SQL_ASCII</literal>. Supported encoding depends on PostgreSQL