XML Parse Error on Soap Response using NuSoap Library

I'm having a problem getting trying to view an xml page that i generate using SOAP and want to use as a Soap Envelope, i'm getting all the information on my browser but it gives me an error when i try to view it as an xml. MY response is as below on my DOM..

<?xml version="1.0" encoding="ISO-8859-1"?><dealsCollection><deals title_description="Anytime 200" total_cost="679.00" hardware_prices="N;"/><deals title_description="Smart S" total_cost="669.00" hardware_prices="N;"/><deals title_description="Anytime 200" total_cost="679.00" hardware_prices="N;"/></dealsCollection><?xml version="1.0" encoding="ISO-8859-1"?>

I've noticed that my response output xml declaration at the end and that is probably the one causing my problem which is as stated below.

XML Parsing Error: junk after document element Location: "http://localhost/autopage/deals/deals.php?wsdl" Line Number 1, Column 318:

My Code for generating the response is as listed below, NB: im manually calling the function to get all my deals and not using a client to get it for now. my client is going to be on Android, at the moment i just need to solve a problem im facing trying to get a proper XML output.

<?php
include("../config.php");
require_once ('../nusoap/lib/nusoap.php');  


//configuring the server instance
$URL       = "localhost/autopage";
$namespace = $URL . '?wsdl';    
$server = new nusoap_server();

//defining the WSDL with the site namespace
$server->configureWSDL('getalldealsofsite', $namespace);
//$server->methodreturnisliteralxml = TRUE; 

$server->wsdl->addComplexType(
'dataArray',    // MySoapObjectArray
'complexType', 'array', '', 'SOAP-ENC:Array',
    array(),
    array(array('ref'=>'SOAP-ENC:arrayType','wsdl:arrayType'=>'tns:return_array_php')), 'tns:return_array_php'
);

//registering the services
$server->register(
    'getalldeals',
    array('amount'=>'xsd:int'),
    array('return'=>'xds:dataArray'),
    $namespace,
    false,
    'document',
    'literal',
    'description '
);  



getalldeals(650);

//service to get all deals
function getalldeals($price){                   
    $sql = "select * from deals WHERE total_cost >= '".$price."'";      
    $q = mysql_query($sql);

    header("Content-Type: text/xml; charset=utf-8");
    echo '<?xml version="1.0" encoding="ISO-8859-1"?>';
    $result = '<dealsCollection>';      

    while($row = mysql_fetch_assoc($q)){                    
        $result .= '<deals ';
        $result .=  'title_description="'. parseToXML($row['title_description']) .'" ';
        $result .=  'total_cost="' .parseToXML($row['total_cost']). '" ';
        $result .=  'hardware_prices="' .parseToXML($row['hardware_prices']). '"';
        $result .=  '/>';   
    }
    $result .=  '</dealsCollection>';   

    echo $result;
}   

function parseToXML($htmlStr){ 
          $xmlStr=str_replace('<','&lt;',$htmlStr); 
          $xmlStr=str_replace('>','&gt;',$xmlStr); 
          $xmlStr=str_replace('"','&quot;',$xmlStr); 
          $xmlStr=str_replace("'",'&#39;',$xmlStr); // line 11  
          $xmlStr=str_replace("&",'&amp;',$xmlStr); 
          return $xmlStr; 
} 
$HTTP_RAW_POST_DATA = isset($HTTP_RAW_POST_DATA) ? $HTTP_RAW_POST_DATA : ''; $server->service($HTTP_RAW_POST_DATA); 

?>

Please guys i've been struggling to solve this for the past 3 days, looking forward to getting your help. Please let me know if you need more information i will gladly provide anything requested if the question is not clear.

Thank You.