PHP - 向cloudflare受保护的网站发出请求？

Question

I am attempting to download the document of a certain webpage(the stuff you would see if you hit 'view page source'), which has cloudfare protection, then echo it. Here is my current code:

<?php
    $ch = curl_init();
    $curlConfig = array(
        CURLOPT_URL            => $url,
        CURLOPT_RETURNTRANSFER => 1,
        CURLOPT_SSL_VERIFYPEER => false,
        CURLOPT_USERAGENT => 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.6) Gecko/20070725 Firefox/2.0.0.6',
        CURLOPT_FOLLOWLOCATION => 0
    );
    curl_setopt_array($ch, $curlConfig);
    echo(curl_exec($ch));
    curl_close($ch);
?>

It redirects me to this url:

http://localhost/cdn-cgi/l/chk_jschl? jschl_vc=7df2b994a588cc3cb3b91ecc95acca7e&pass=1443965612.707-g3h0lQ531e&jschl_answer=377

Of course, I do not have chk_jschl on my localhost. How can I work around this?