如何转储 SoapClient 请求或响应以进行调试？

我需要调试一些使用的代码SoapClient班级。我发现方法记录如下__getLastRequest()，但它只返回null.

$client = new SoapClient("https://example.com/service.wsdl");

$response = $client->DoFunction([
    "Parameter1" => 100,
]);
        
echo "====== REQUEST HEADERS =====" . PHP_EOL;
var_dump($client->__getLastRequestHeaders());
echo "========= REQUEST ==========" . PHP_EOL;
var_dump($client->__getLastRequest());
echo "===== RESPONSE HEADERS =====" . PHP_EOL;
var_dump($client->__getLastResponse());
echo "========= RESPONSE =========" . PHP_EOL;
var_dump($response);

代码执行结果：

====== REQUEST HEADERS =====
NULL
========= REQUEST ==========
NULL
===== RESPONSE HEADERS =====
NULL
========= RESPONSE =========
object(stdClass)#2 (1) {
  ["FunctionResult"]=>
  float(0.0746)
}

如何从我正在使用的调试函数中获取结果？

这些功能 http://php.net/manual/en/soapclient.getlastrequestheaders.php仅当创建 SoapClient 对象时才有效将跟踪选项设置为 TRUE.

Try:

$client = new SoapClient("http://www.webservicex.net/ConverPower.asmx?WSDL", array('trace' => 1));