PHP Decode

<?php 
 
/** 
 * AntiAdBlock custom library for API, with some caching. 
 * Requires PHP 5+. 
 */ 
class __AntiAdBlock 
{ 
    /** @var string */ 
    private $token = '3edd157e6776f0abc7071248864bcec8f24817ad'; 
 
    /** @var int */ 
    private $zoneId = '882626'; 
 
    ///// do not change anything below this point ///// 
 
    private function getCurl($url) 
    { 
        if ((!extension_loaded('curl')) || (!function_exists('curl_version'))) { 
            return false; 
        } 
 
        $curl = curl_init(); 
        curl_setopt_array($curl, array( 
            CURLOPT_RETURNTRANSFER => 1, 
            CURLOPT_USERAGENT      => 'AntiAdBlock API Client', 
            CURLOPT_FOLLOWLOCATION => false, 
            CURLOPT_SSL_VERIFYPEER => true, 
        )); 
 
        // prefer SSL if at all possible 
        $version = curl_version(); 
        if ($version['features'] & CURL_VERSION_SSL) { 
            curl_setopt($curl, CURLOPT_URL, 'https://go.transferzenad.com' . $url); 
        } else { 
            curl_setopt($curl, CURLOPT_URL, 'http://go.transferzenad.com' . $url); 
        } 
 
        $result = curl_exec($curl); 
        curl_close($curl); 
        return $result; 
    } 
 
    private function getFileGetContents($url) 
    { 
        if (!function_exists('file_get_contents') || !ini_get('allow_url_fopen') || 
            ((function_exists('stream_get_wrappers')) && (!in_array('http', stream_get_wrappers())))) { 
            return false; 
        } 
 
        if (function_exists('stream_get_wrappers') && in_array('https', stream_get_wrappers())) { 
            return file_get_contents('https://go.transferzenad.com' . $url); 
        } else { 
            return file_get_contents('http://go.transferzenad.com' . $url); 
        } 
    } 
 
    private function getFsockopen($url) 
    { 
        $fp = null; 
        if (function_exists('stream_get_wrappers') && in_array('https', stream_get_wrappers())) { 
            $fp = fsockopen('ssl://' . 'go.transferzenad.com', 443, $enum, $estr, 10); 
        } 
        if ((!$fp) && (!($fp = fsockopen('tcp://' . gethostbyname('go.transferzenad.com'), 80, $enum, $estr, 10)))) { 
            return false; 
        } 
 
        $out = "GET " . $url . " HTTP/1.1
"; 
        $out .= "Host: go.transferzenad.com
"; 
        $out .= "User-Agent: AntiAdBlock API Client
"; 
        $out .= "Connection: close

"; 
        fwrite($fp, $out); 
        $in = ''; 
        while (!feof($fp)) { 
            $in .= fgets($fp, 1024); 
        } 
        fclose($fp); 
        return substr($in, strpos($in, "

") + 4); 
    } 
 
    private function findTmpDir() 
    { 
        if (!function_exists('sys_get_temp_dir')) { 
            if (!empty($_ENV['TMP'])) { 
                return realpath($_ENV['TMP']); 
            } 
            if (!empty($_ENV['TMPDIR'])) { 
                return realpath($_ENV['TMPDIR']); 
            } 
            if (!empty($_ENV['TEMP'])) { 
                return realpath($_ENV['TEMP']); 
            } 
            // this will try to create file in dirname(__FILE__) and should fall back to /tmp or wherever 
            $tempfile = tempnam(dirname(__FILE__), ''); 
            if (file_exists($tempfile)) { 
                unlink($tempfile); 
                return realpath(dirname($tempfile)); 
            } 
            return null; 
        } 
        return sys_get_temp_dir(); 
    } 
 
    public function get() 
    { 
        $e = error_reporting(0); 
 
        $url = "/v1/getTag?" . http_build_query(array('token' => $this->token, 'zoneId' => $this->zoneId)); 
        $file = $this->findTmpDir() . '/pa-code-' . md5($url) . '.js'; 
        // expires in 4h 
        if (file_exists($file) && (time() - filemtime($file) < 4 * 3600)) { 
            error_reporting($e); 
            return file_get_contents($file); 
        } 
        $code = $this->getCurl($url); 
        if (!$code) { 
            $code = $this->getFileGetContents($url); 
        } 
        if (!$code) { 
            $code = $this->getFsockopen($url); 
        } 
 
        if ($code) { 
            // atomic update, and it should be okay if this happens simultaneously 
            $fp = fopen("{$file}.tmp", 'wt'); 
            fwrite($fp, $code); 
            fclose($fp); 
            rename("${file}.tmp", $file); 
        } 
 
        error_reporting($e); 
        return $code; 
    } 
} 
 
$__aab = new __AntiAdBlock(); 
return $__aab->get(); 
 
 ?>