我正试图从远程wordpress数据库中提取一些数据。以下是我的代码：

$server = "my server code";
$user = "my username";
$password = "my password";
$db = "mydb";
$con = mysql_connect($server,$user,$password); 
if (!$con) {
    die("database connection error");

} else {

mysql_select_db($db, $con);

function dp_get_user_liked_posts($user_id, $fields = \'\') {

    global $wpdb;

    $tempDB = $wpdb;

$wpdb = new wpdb($user, $password, $db, $server);

    // Get user settings
    $settings = get_option(\'dp_post_likes\');

        $login_required = !empty($settings[\'login_required\']) ? true : false;

            if($login_required && !is_user_logged_in()) {

                echo \'<p class="must-login">\'.sprintf(__(\'You must <a href="%1$s">register</a> and <a href="%2$s">login</a> to view your liked videos.\', \'dp\'),  site_url(\'wp-login.php?action=register\', \'login\'), wp_login_url()).\'</p>\';

            } else {

    $settings = get_option(\'dp_post_likes\');
    $user = get_current_user_id();
    $user_id = 2;
    $likes=query_posts(array(
                            \'post_type\' => \'post\',
                            \'ignore_sticky_posts\' => true,
                            \'filter_type\' => \'user_liked\',
                            \'filter_user\' => $user_id
                        ));

                global $wp_query;
                 $likes= array();
                 while (have_posts()) : 
                            $likes[]=the_post() ;
                        endwhile;

}}}  
        mysql_close($con);

$wpdb = $tempDB;