如何通过 Curl 和 PHP 发送 SOAP XML？

这已经困扰我好几天了；我正在尝试通过 Curl 发送 SOAP 帖子，但我总是收到“无法连接到主机”错误，但是，我真的不知道如何解决。

我有一个 ASP 版本，它可以在相同的 URL 和数据下正常工作。我认为这只是 PHP/Curl 的事情。

我目前有以下代码（CURLOPT_POSTFIELDSdata 是有效的 SOAP 信封字符串）：

$soap_do = curl_init();
curl_setopt($soap_do, CURLOPT_URL,            "https://xxx.yyy.com:517/zzz.asmx" );
curl_setopt($soap_do, CURLOPT_CONNECTTIMEOUT, 10);
curl_setopt($soap_do, CURLOPT_TIMEOUT,        10);
curl_setopt($soap_do, CURLOPT_RETURNTRANSFER, true );
curl_setopt($soap_do, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($soap_do, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($soap_do, CURLOPT_POST,           true );            
curl_setopt($soap_do, CURLOPT_POSTFIELDS,     '<soap:Envelope>...</soap:Envelope>'); 
curl_setopt($soap_do, CURLOPT_HTTPHEADER,     array('Content-Type: text/xml; charset=utf-8', 'Content-Length: '.strlen('<soap:Envelope>...</soap:Envelope>') ));

if(curl_exec($soap_do) === false)
{                
    $err = 'Curl error: ' . curl_error($soap_do);
    curl_close($soap_do);
    return $err;
}
else
{
    curl_close($soap_do); 
    return 'Operation completed without any errors';
}

那么有什么想法为什么它总是出错吗？

ASP版本运行良好！代码是：

Set xmlhttp = server.Createobject("MSXML2.ServerXMLHTTP")
xmlhttp.Open "POST","https://xxx.yyy.com:517/zzz.asmx"
xmlhttp.setRequestHeader "Content-Type", "text/xml; charset=utf-8"
xmlhttp.Send('<soap:Envelope>...</soap:Envelope>')

非常感谢朋友，你的代码对我有用。

这是代码：

$soap_do = curl_init(); 
curl_setopt($soap_do, CURLOPT_URL,            $url );   
curl_setopt($soap_do, CURLOPT_CONNECTTIMEOUT, 10); 
curl_setopt($soap_do, CURLOPT_TIMEOUT,        10); 
curl_setopt($soap_do, CURLOPT_RETURNTRANSFER, true );
curl_setopt($soap_do, CURLOPT_SSL_VERIFYPEER, false);  
curl_setopt($soap_do, CURLOPT_SSL_VERIFYHOST, false); 
curl_setopt($soap_do, CURLOPT_POST,           true ); 
curl_setopt($soap_do, CURLOPT_POSTFIELDS,    $post_string); 
curl_setopt($soap_do, CURLOPT_HTTPHEADER,     array('Content-Type: text/xml; charset=utf-8', 'Content-Length: '.strlen($post_string) )); 
curl_setopt($soap_do, CURLOPT_USERPWD, $user . ":" . $password);

$result = curl_exec($soap_do);
$err = curl_error($soap_do);