PHP cURL Recv failure: Connection was reset

Question

我百度了一下两种解决方案
1、 在curl加入禁止https的，然而，没什么反应

curl_setopt( $ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt( $ch, CURLOPT_SSL_VERIFYHOST, false);

2、在apache的http.conf中加入

EnableSendfile off
EnableMMAP off

两种办法都无济于事，我没有大批量的抓页面，只是抓一个搜索页面咋会这样，求大神帮助呀
我的是win服务器
下面是我的代码：

    $url    = 'http://www.baidu.com/s?wd=' . urlencode( "site:" . $input . $key );
    $data   = array();
    $header = array();
    $response = $this->doCurl( $url, $data, $header, 5 );
    
    public function doCurl( $url, $data = array(), $header = array(), $timeout = 30 ) {
        $ch = curl_init();
        curl_setopt( $ch, CURLOPT_URL, $url );
        curl_setopt( $ch, CURLOPT_HTTPHEADER, $header );
        curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
        curl_setopt( $ch, CURLOPT_FOLLOWLOCATION, true );
        curl_setopt( $ch, CURLOPT_TIMEOUT, $timeout );
        curl_setopt( $ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt( $ch, CURLOPT_SSL_VERIFYHOST, false);

        $response = curl_exec( $ch );
        if ( $error = curl_error( $ch ) ) {
            die( $error );
        }

        curl_close( $ch );

        return $response;
    }