fix #30590 : context not described

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@171686 c90b9560-bf6c-de11-be94-00142212c4b1

reference/dir/functions/scandir.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.3 $ -->
+<!-- $Revision: 1.4 $ -->
   <refentry id="function.scandir">
    <refnamediv>
     <refname>scandir</refname>
@@ -26,6 +26,15 @@
      the optional <parameter>sorting_order</parameter> is used (set to 1),
      then sort order is alphabetical in descending order.
     </para>
+    <para>
+     For a description of the <parameter>context</parameter> parameter, refer
+     to <xref linkend="ref.stream"/>.
+    </para>
+    <note>
+     <para>
+      Context support was added in PHP 5.0.0.
+     </para>
+    </note>
     <para>
      <example>
       <title>A simple <function>scandir</function> example</title>