$client = new SoapClient('http://www.test.com/LoginValidate.asmx?wsdl');
//参数转为数组形式传递
$params = array('salt'=>'6E178398-FF65-4146-8736-8655CA0D25FC', 'toEncrypt'=>$admin_password);
//调用远程函数
$aryResult=$client->Md5Encrpyt($params);
$res=$aryResult->Md5EncrpytResult;

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