:::
3-2 config.php
<?php
//變數設定
$admin_id = 'tad@tn.edu.tw';
$admin_pass = '12345';
//常數設定
define('_DB_LOCATION', 'localhost');
define('_DB_ID', 'root');
define('_DB_PASS', '12345');
define('_DB_NAME', 'signup');
3-1 index.php