PHP Decode

<?php 
/****************** 
 
* Developed by CXUideas 
 
* Project: Wapking Grabber 
 
* Developed on 28/05/2014 
 
* Coded by Febin Baiju 
 
* CXUideas | [email protected] 
 
******************/ 
 
error_reporting(0); 
ob_start(); 
 
include 'w.php'; 
$id = $_GET['id']; 
 
$size = $_GET['size']; 
$u = 'http://waploft.com/files/download/id/'.$id.''; 
if(!empty($size)) 
$u = 'http://waploft.com/files/download/id/'.$id.'/size/'.$size.''; 
include 'config.php'; 
$orig_url = get_headers($u); 
 
$orig_url = trim(str_replace('Location: ',null,$orig_url[7])); 
$ext = strtolower(@end(@explode('.',$orig_url))); 
$base = basename($orig_url); 
 
$paths = str_replace('/'.$base.'',null,preg_replace('@http://(.*?).waploft.com/@',null,$orig_url)); 
$filename = str_ireplace(array('wapking.cc','waploft.com'),$sitename,$base); 
 
if(!file_exists($paths)) 
mkdir($paths,0777,true); 
$r_file = $paths.'/'.$filename; 
if(!file_exists($r_file)) 
 
{ 
if(copy($orig_url,$r_file)) 
{ 
if(strtolower(@end(@explode('.',$r_file)))=='mp3') 
{ 
$sname = $r_file; 
include 'id.php'; 
} 
if(@in_array(strtolower(@end(@explode('.',$r_file))),array('jpg','jpeg','png','gif'))) 
{ 
watermark($r_file); 
} 
header('location:'.$path_url.''.$r_file.''); 
} 
} 
else  
header('location:'.$path_url.''.$r_file.''); 
 
ob_flush(); 
?>