PHP Decode

<?php


namespace Miniorange\SamlSpPremium\Controller;

use TYPO3\CMS\Core\Database\ConnectionPool;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Extbase\Domain\Repository\FrontendUserRepository;
use TYPO3\CMS\Extbase\Mvc\Controller\ActionController;
class LogoutController extends ActionController
{
    public function logoutAction()
    {
        GeneralUtility::makeInstance(\TYPO3\CMS\Core\Cache\CacheManager::class)->flushCaches();
        $ja = GeneralUtility::makeInstance(ConnectionPool::class)->getQueryBuilderForTable("\x73\x61\155\154");
        $VY = $ja->select("\x73\154\157\x5f\x75\x72\154")->from("\163\141\155\154")->where($ja->expr()->eq("\165\x69\x64", $ja->createNamedParameter(1, \PDO::PARAM_INT)))->execute()->fetchColumn(0);
        if (!isset($_REQUEST["\123\101\x4d\x4c\122\x65\x73\160\x6f\156\163\145"])) {
            goto Xm;
        }
        $Uy = $_REQUEST["\123\x41\x4d\114\x52\145\x73\x70\157\x6e\163\145"];
        $Uy = base64_decode($Uy);
        if (!(array_key_exists("\x53\x41\x4d\x4c\x52\145\163\160\x6f\156\163\x65", $_GET) && !empty($_GET["\123\101\115\114\122\145\163\x70\x6f\x6e\x73\145"]))) {
            goto O_;
        }
        $Uy = gzinflate($Uy);
        O_:
        $Tz = new \DOMDocument();
        $Tz->loadXML($Uy);
        $Ft = $Tz->firstChild;
        $M4 = $Tz->documentElement;
        error_log(print_r($Ft, true));
        if (!($Ft->localName == "\x4c\157\147\157\165\164\x52\145\x73\160\157\x6e\x73\145")) {
            goto Di;
        }
        header("\x4c\157\143\x61\164\151\157\156\72\40" . $VY . "\x3f\163\154\157\75\x73\165\x63\x63\x65\163\163");
        die;
        Di:
        Xm:
    }
}