使用curl获取登录页面后面的json文件

Question

我试图从此页面https://www.rbauction.com/rba-api/search/results/advanced?rbasq=YXJ8Tj00Mjk0MjM4MzMyKzQyOTQ5NjU3OTg=&offset=2&count=1&ccb=USD

获取json数据

当我从浏览器访问该页面时，它会要求我登录，登录后会立即显示json。需要做的是使用curl使用php获取json数据。

$username = 'myemail';
    $password = 'mypass';
    $loginurl = 'https://www.rbauction.com/myaccount';

    $ch = curl_init();

    curl_setopt($ch, CURLOPT_URL, $loginurl);

    curl_setopt($ch, CURLOPT_POST, 1);

    curl_setopt($ch, CURLOPT_POSTFIELDS, '_58_login='.$username.'&_58_password='.$password);

    curl_setopt($ch, CURLOPT_COOKIEJAR, 'cookie.txt');

    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);

    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

   // $store = curl_exec($ch);

    $httpcode = curl_getinfo($ch,CURLINFO_HTTP_CODE);

    curl_setopt($ch, CURLOPT_URL, 'https://www.rbauction.com/rba-api/search/results/advanced?rbasq=YXJ8Tj00Mjk0MjM4MzMyKzQyOTQ5NjU3OTg%3D&offset=2&count=1&ccb=USD');

    $store = curl_exec($ch);

    var_dump($store);

当我执行var_dump时它只显示空字符串