Php Wordpress密码重置筛选消息返回空白登录

我正在使用替换默认密码重置电子邮件。电子邮件发送正常，尽管打开时登录信息丢失。登录名添加到两条消息$user_login中，由于返回为空，密码重置url也不起作用。其他一切正常，如果我手动添加登录，url也正确

你知道这是什么吗

add_filter('retrieve_password_message', 'my_reset_password_message', null, 2);

function my_reset_password_message( $message, $key ) {

    if ( strpos($_POST['user_login'], '@') ) {
        $user_data = get_user_by('email', trim($_POST['user_login']));
    } else {
        $login = trim($_POST['user_login']);
        $user_data = get_user_by('login', $login);
    }

    $user_login = $user_data->user_login;

    $msg = __('The password for the following account has been requested to be reset:'). "\r\n\r\n";
    $msg .= network_site_url() . "\r\n\r\n";
    $msg .= sprintf(__('Username: %s'), $user_login) . "\r\n\r\n";
    $msg .= __('If this message was sent in error, please ignore this email.') . "\r\n\r\n";
    $msg .= __('To reset your password, visit the following address:');
    $msg .= network_site_url("wp-login.php?action=rp&key=$key&login=" . rawurlencode($user_login), 'login');


    return $msg;

}

请尝试使用此代码-

add_filter("retrieve_password_message", "my_custom_password_reset", 99, 4);

function my_custom_password_reset($message, $key, $user_login, $user_data ){
        $message = "Someone has requested a password reset for the following account: " . sprintf(__('%s'), $user_data->user_email) . " If this was a mistake, just ignore this email and nothing will happen. To reset your password, visit the following address: " . network_site_url("wp-login.php?action=rp&key=$key&login=" . rawurlencode($user_login), 'login') . "\r\n";
         return $message;
 }