如何使用PHP发送和接收xml ( SOAP web服务)

$curl = curl_init();

$url = "http://example.com/soap-service";
$soapRequest = "<soap:Envelope>...</soap:Envelope>";

$options = array(
  CURLOPT_URL => $url,
  CURLOPT_POST => true,
  CURLOPT_HTTPHEADER => array(
    "Content-Type: text/xml",
    "Content-Length: " . strlen($soapRequest)
  ),
  CURLOPT_POSTFIELDS => $soapRequest,
  CURLOPT_RETURNTRANSFER => true
);

curl_setopt_array($curl, $options);

$response = curl_exec($curl);

curl_close($curl);

$soapResponse = simplexml_load_string($response);
// 进一步解析和处理SOAP XML数据