curl 一带cookie就变成死循环，不带cookie就能用，求解

        $ch = curl_init();
        $cookie=$this->cookie();
        $header = array("cookie:$cookie");// 添加apikey到header
        curl_setopt($ch, CURLOPT_HTTPHEADER  , $header);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
        curl_setopt($ch, CURLOPT_AUTOREFERER, 1);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($post_data));
        curl_setopt($ch , CURLOPT_URL , $url);
        $res = curl_exec($ch);
        curl_close($ch);
        return $res;