PHP Decode

<?php 
/****************** 
* Developed by CXUideas 
* Project: Wapking Grabber 
* Developed on 28/05/2014 
* Coded by Febin Baiju 
* CXUideas | 
cxuideas@gmail .com 
******************/ 
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(); 
?>