Php curl getting Empty reply from server

I have a very simple php curl application where below is my codes I used to send header and body to server.

<?php

$xml_data = "<Request><NewOrder>";


$URL = "http://localhost/rece1.php";
$header ="";
// Build header as array for cURL option
$header = "HTTP/1.0\r\n";
$header.= "MIME-Version: 1.0\r\n";
//$header.= "Content-type: application/PTI46\r\n";
$header.= "Content-length: ".strlen($xml_data)."\r\n";
$header.= "Content-transfer-encoding: text\r\n";
$header.= "Request-number: 1\r\n";
$header.= "Document-type: Request\r\n";
$header.= "Interface-Version: Test 1.4\r\n";
$header.= "Connection: close \r\n\r\n";              
$header.= $xml_data;   

// Define cURL options, then connect to server while saving response
$ch = curl_init();

curl_setopt($ch, CURLOPT_URL,$URL);

curl_setopt($ch, CURLOPT_HEADER, false); 
curl_setopt($ch, CURLOPT_FRESH_CONNECT, TRUE);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $header);
//curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
//curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$f = fopen('request.txt', 'w');
curl_setopt($ch,CURLOPT_VERBOSE,true);
curl_setopt($ch,CURLOPT_STDERR ,$f);

$rawResponse = curl_exec($ch);  

echo "TEST : ".$rawResponse;           

if (curl_errno($ch)) {
   print curl_error($ch);
} else {
   curl_close($ch);
}

?>

At the server end (rece1.php) I have this.

<?php
$headers = apache_request_headers();

foreach ($headers as $header => $value) {
    echo "$header: $value <br />\n";
}

?>

What I get the results is Empty reply from server. I would like to receive the header information back from server with the body formatted in certain format which some ack message. How can I achieve that?