private function __construct($host, $user, $password, $dbname, $type, $dbConnectType = 'pdo')
{
if (!extension_loaded($dbConnectType)) {
header('Content-Type:text/html; charset=utf-8');
die('没有' . $dbConnectType . '数据库扩展！');
}
self::$dbConnectType = $dbConnectType;
//不同数据库类型连接
switch ($dbConnectType) {
case 'mysql':
$db = new Db\MySQL();
break;
case 'mysqli':
$db = new Db\MySQLi();
break;
case 'pdo':
$db = new Db\PDO();
break;
default:
$db = new Db\MySQLi();
}
self::$db[$type] = $db->connect($host, $user, $password, $dbname);
}
