SOAP错误：解析WSDL：无法从'https://asdf.com?wsdl'加载：无法加载外部实体“ https://asdf.com?wsdl”

Question

我有此代码：

     $options = array(
        'cache_wsdl' => 0,
        'trace' => 1,
        'stream_context' => stream_context_create(
            array(
                'ssl' => array(
                    'verify_peer' => false,
                    'verify_peer_name' => false,
                    'allow_self_signed' => true
                )
            )
        )
    );

    $this->client = new SoapClient("https://wsgth.gothaer.ro/services/ext-2?wsdl", $options);

我收到此错误：

  

SoapFault异常：[WSDL] SOAP错误：解析WSDL：无法从“ https://wsgth.gothaer.ro/services/ext-2?wsdl”加载：无法加载外部实体“ https://wsgth.gothaer.ro/services/ext-2?wsdl”    在C：\ Apache24 \ htdocs \ abc.php

P.S。我只能在第一次通话后收到此错误，然后才能正常工作。一段时间不活动后，它仅一次抛出我相同的错误，此后工作正常。依此类推。

P.S 2.脚本运行正常，直到我更改了ws。