php 接收与发送xml文件

//接收xml: 
$xml = file_get_contents('php://input'); 
  
//发送(post): 
$xml_data = <xml>...</xml>"; 
$url = http://dest_url; 
$header[] = "Content-type: text/xml";//定义content-type为xml 
curl_setopt($ch, CURLOPT_URL, $url); 
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
curl_setopt($ch, CURLOPT_HTTPHEADER, $header); 
curl_setopt($ch, CURLOPT_POST, 1); 
curl_setopt($ch, CURLOPT_POSTFIELDS, $xml_data); 
$response = curl_exec($ch); 
if(curl_errno($ch)) 
{ 
print curl_error($ch); 
} 
curl_close($ch);
//或者： 
$fp = fsockopen($server, 80); 
fputs($fp, "POST $path HTTP/1.0rn"); 
fputs($fp, "Host: $serverrn"); 
fputs($fp, "Content-Type: text/xmlrn"); 
fputs($fp, "Content-Length: $contentLengthrn"); 
fputs($fp, "Connection: closern"); 
fputs($fp, "rn"); // all headers sent 
fputs($fp, $xml_data); 
$result = ''; 
while (!feof($fp)) { 
$result .= fgets($fp, 128); 
} 
return $result;