Documented the influence of track_vars/gpc_globas on restoring session.

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@17257 c90b9560-bf6c-de11-be94-00142212c4b1

functions/session.xml

@@ -37,6 +37,18 @@
     by the session module unless the user defines them later.
    </para>
 
+   <para>
+    <literal>track_vars</literal> and <literal>gpc_globals</literal>
+    configuration settings influence how the session variables get
+    restored. If <literal>track_vars</literal> is enabled, then the
+    restored session variables will be available in the global
+    associative array $HTTP_STATE_VARS. If
+    <literal>gpc_globals</literal> is enabled, then the session
+    variables will be restored to corresponding global variables. If
+    both of these settings are enabled, then the globals variables and
+    the $HTTP_STATE_VARS entries will reference the same value.
+   </para>
+
    <para>
     There are two methods to propagate a session id:
 
@@ -250,7 +262,7 @@ close
       module will use cookies to store the session id on the client
       side. Defaults to <literal>1</literal>
       (enabled).</simpara></listitem>
-    
+
     </itemizedlist>
 
    <note>
@@ -561,7 +573,7 @@ sgml-always-quote-attributes:t
 sgml-indent-step:1
 sgml-indent-data:t
 sgml-parent-document:nil
-sgml-default-dtd-file:"../manual.ced"
+sgml-default-dtd-file:"../../manual.ced"
 sgml-exposed-tags:nil
 sgml-local-catalogs:nil
 sgml-local-ecat-files:nil