PHP Decode

<?php 
 
$cekilecek_text="http://ibrahimozdemir.top/lisans/musteri/gGp31u1-wmaraci.ceqyat/lisans.txt"; 
if (!function_exists("file")) { die("<strong><a href='http://www.php.net/file'>file</a></strong> fonksiyonu sunucuda ykl olmaldr<br /> fonction <strong><a href='http://www.php.net/file'>file</a></strong> must be installed on the server"); } 
function lisanskontrol() { 
if (substr($_SERVER['HTTP_HOST'], 0, 4) == "www.") { 
$domainadi = substr($_SERVER['HTTP_HOST'], 4); 
} else { 
$domainadi = $_SERVER['HTTP_HOST']; 
} 
return $domainadi; 
} 
$alanadi=lisanskontrol(); 
$lisanstext=file($cekilecek_text,FILE_IGNORE_NEW_LINES); 
$lisans=array(); 
foreach($lisanstext as $sayi => $cekveri) { 
$lisans[$sayi]=rtrim($cekveri,"rn"); 
} 
if (!in_array($alanadi,$lisans)) { 
die("<center><h2>Domain lisans icin   www.ibrahimozdemir.org/lisans  adresine bakiniz .<br>Lisanssiz Kullanim:".$alanadi."<br /> Unlicensed Usage ".$alanadi ); exit; 
} 
 
?>