diff --git a/reference/spl/splfileobject/fputcsv.xml b/reference/spl/splfileobject/fputcsv.xml
index aa0484b69f..fd9599e588 100644
--- a/reference/spl/splfileobject/fputcsv.xml
+++ b/reference/spl/splfileobject/fputcsv.xml
@@ -60,6 +60,13 @@
     </listitem>
    </varlistentry>
   </variablelist>
+  <note>
+   <para>
+    If an <parameter>enclosure</parameter> character is contained in a field,
+    it will be escaped by doubling it, unless it is immediately preceded by an
+    <parameter>escape_char</parameter>.
+   </para>
+  </note> 
  </refsect1>
 
  <refsect1 role="returnvalues">