php curl 发送GET，POST请求的函数

    protected function http_request($url, $data = null)    {        $curl = curl_init();        curl_setopt($curl, CURLOPT_URL, $url);        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);        if (!empty($data)){            curl_setopt($curl, CURLOPT_POST, 1);            curl_setopt($curl, CURLOPT_POSTFIELDS, $data);        }        curl_setopt($curl, CURLOPT_RETURNTRANSFER, TRUE);        $output = curl_exec($curl);        curl_close($curl);        return $output;    }

可以发送POST，也可以发送GET，如果是POST就需要自定义数据$data