:::
4-4 config.php
<?php
//變數設定
$admin_id = 'tad@tn.edu.tw';
//常數設定
define('_DB_LOCATION', 'localhost');
define('_DB_ID', 'root');
define('_DB_PASS', '12345');
define('_DB_NAME', 'signup');
4-3 footer.php