diff --git a/reference/filesystem/functions/pathinfo.xml b/reference/filesystem/functions/pathinfo.xml
index 503643d29a..63fdf1b0a7 100644
--- a/reference/filesystem/functions/pathinfo.xml
+++ b/reference/filesystem/functions/pathinfo.xml
@@ -5,7 +5,7 @@
   <refname>pathinfo</refname>
   <refpurpose>Returns information about a file path</refpurpose>
  </refnamediv>
- 
+
  <refsect1 role="description">
   &reftitle.description;
   <methodsynopsis>
@@ -60,6 +60,14 @@
    <literal>dirname</literal>, <literal>basename</literal>,
    <literal>extension</literal> (if any), and <literal>filename</literal>.
   </para>
+  <note>
+   <para>
+    If the <parameter>path</parameter> has more than one an extension,
+    <constant>PATHINFO_EXTENSION</constant> returns only the last one and
+    <constant>PATHINFO_FILENAME</constant> only strips the last one.
+    (see first example below).
+   </para>
+  </note>
   <note>
    <para>
     If the <parameter>path</parameter> does not have an extension, no
@@ -68,7 +76,7 @@
    </para>
   </note>
   <para>
-   If <parameter>options</parameter> is present, returns a 
+   If <parameter>options</parameter> is present, returns a
    <type>string</type> containing the requested element.
   </para>
  </refsect1>
@@ -163,13 +171,13 @@ NULL
   </note>
   <note>
    <para>
-    <function>pathinfo</function> is locale aware, so for it to parse a path 
-    containing multibyte characters correctly, the matching locale must be set using 
+    <function>pathinfo</function> is locale aware, so for it to parse a path
+    containing multibyte characters correctly, the matching locale must be set using
     the <function>setlocale</function> function.
    </para>
   </note>
  </refsect1>
- 
+
  <refsect1 role="seealso">
   &reftitle.seealso;
   <para>