使用php添加soap安全标头

有一件事我正在努力解决。我看到密码了 UsernameToken userNameToken1 = new UsernameToken(sToken_UserName, sToken_Password, PasswordOption.SendPlainText);

$token = new stdClass;
$token->Username = new SOAPVar($username, XSD_STRING, null, null, null, $ns);
$token->Password = new SOAPVar($password, XSD_STRING, null, null, null, $ns);

$wsec = new stdClass;
$wsec->UsernameToken = new SoapVar($token, SOAP_ENC_OBJECT, null, null, null, $ns);

$headers = new SOAPHeader($ns, 'Security', $wsec, true);
$client->__setSOAPHeaders($headers);

Uncaught SoapFault exception: [SOAP-ENV:Client] com.sun.xml.wss.XWSSecurityException: Receiver Requirement for nonce has not been met; nested exception is com.sun.xml.wss.XWSSecurityException: com.sun.xml.wss.XWSSecurityException: Receiver Requirement for nonce has not been met

我做错了什么?是否有我需要知道的缺失信息?