diff --git a/reference/filter/functions/filter-data.xml b/reference/filter/functions/filter-data.xml
index 9ed3744f22..c84540f234 100644
--- a/reference/filter/functions/filter-data.xml
+++ b/reference/filter/functions/filter-data.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.2 $ -->
+<!-- $Revision: 1.3 $ -->
 <!-- Generated by xml_proto.php v2.4. Found in /scripts directory of phpdoc. -->
 <refentry id="function.filter-data">
  <refnamediv>
@@ -64,7 +64,7 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-   Returns filtered data or &null; if filter fails.
+   Returns the filtered data, or &false; if the filter fails.
   </para>
  </refsect1>
 
@@ -85,7 +85,7 @@ var_dump(filter_data('example.com', FILTER_VALIDATE_URL, FILTER_FLAG_SCHEME_REQU
     <screen>
 <![CDATA[
 string(15) "bob@example.com"
-NULL
+bool(false)
 ]]>
     </screen>
    </example>
diff --git a/reference/filter/functions/input-get-args.xml b/reference/filter/functions/input-get-args.xml
index 3145713987..3dedcb0d2f 100644
--- a/reference/filter/functions/input-get-args.xml
+++ b/reference/filter/functions/input-get-args.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.2 $ -->
+<!-- $Revision: 1.3 $ -->
 <refentry id="function.input-get-args">
  <refnamediv>
   <refname>input_get_args</refname>
@@ -65,8 +65,9 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-   An array containing the values of the requested variables on success, or
-   &false; if an error occurred.
+   An array containing the values of the requested variables on success, or &false; 
+   on failure. An array value will be &false; if the filter fails, or &null; if 
+   the variable is not set.
   </para>
  </refsect1>
 
diff --git a/reference/filter/functions/input-get.xml b/reference/filter/functions/input-get.xml
index b5e888b6d6..40ec676e27 100644
--- a/reference/filter/functions/input-get.xml
+++ b/reference/filter/functions/input-get.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.2 $ -->
+<!-- $Revision: 1.3 $ -->
 <!-- Generated by xml_proto.php v2.4. Found in /scripts directory of phpdoc. -->
 <refentry id="function.input-get">
  <refnamediv>
@@ -75,9 +75,9 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-   Value of the requested variable on success or &false; if variable has not
-   been found.
-  </para>
+   Value of the requested variable on success, &false; if the filter fails,
+   or &null; if the <parameter>variable_name</parameter> variable is not set.
+   </para>
  </refsect1>
 
  <refsect1 role="examples">