lz数据库连接 以及返回json格式

use Shared\DB;

require __DIR__ . '/../config/_config.inc.php';
require __DIR__ . '/../api/src/autoload.php';

    $pdo=new DB();
    $DB=$pdo->connect([
       'host'   => $PARAM_DB_host,
       'dbname' => 'mic12345',
       'username'   => $PARAM_DB_user,
       'password' => $PARAM_DB_password,
    ]);