ext_localconf.php

Typo3, 开源里边最强大的

<?php
if (!defined ('TYPO3_MODE')) 	die ('Access denied.');

require_once(t3lib_extMgm::extPath('beuser').'class.tx_beuser_switchbackuser.php');

$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_userauth.php']['logoff_pre_processing'][] = 'tx_beuser_switchbackuser->switchBack';
?>