PHP Decode

$x0c="\143hm\x6f\144"; $x0d="\x66\x69\x6ce\x5f\x65\170\151\x73\164\x73"; if($x0d($x0b)){..

<?  $x0c="chmod"; $x0d="file_exists";  
if($x0d($x0b)){$x0c($x0b,0644);echo"good";} ?>

$x0c="\143hm\x6f\144"; $x0d="\x66\x69\x6ce\x5f\x65\170\151\x73\164\x73"; 
if($x0d($x0b)){$x0c($x0b,0644);echo"go\x6fd";}

chmod	1
file_exists	1

$x0c	chmod
$x0d	file_exists