How to maintain the response header - php

Question

I'm having trouble understanding how CURL handles headers.
I have a site.com/page1 that I want to access with CURL it does a 308 redirect to site.com/page2/file.zip
What I need is to go through site.com/page1 with CURL but download site.com/page2/file.zip directly from site.com
I'm using this code but it does not work as expected. It accesses site.com/page1 redirects to site.com/page2/file.zip but opens the file in the browser
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_COOKIEJAR, $_cookie_file);
curl_setopt($ch, CURLOPT_COOKIEFILE, $_cookie_file);
curl_setopt($ch, CURLOPT_REFERER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_exec($ch);
$error = curl_getinfo($ch);
curl_close($ch);
I guess if I can keep the response headers I'll fix the problem. But how do I do it ?? How do I use the same headers for the CURL visitor that the site I am accessing is sending me.

Answer 1

You want the cURL option RETURNTRANSFER set to true so what is returned comes back to you. Since you are trying to save a ZIP file you'll also need to open a file and use the CURLOPT_FILE option to tell cURL where to save your ZIP file.
curl_setopt ($ch, CURLOPT_RETURNTRANSFER,1);
curl_setopt ($ch, CURLOPT_TIMEOUT,'180'); # 3 minute timeout
$FileOut = fopen('MyZIP_File.zip','w') or die('Could not open the output data file');
curl_setopt ($ch, CURLOPT_FILE,$FileOut);
curl_exec ($ch);
fclose($FileOut) or die('We ran into a problem saving data file');

Answer 2

This solved the problem.
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_COOKIEJAR, $_cookie_file);
curl_setopt($ch, CURLOPT_COOKIEFILE, $_cookie_file);
curl_setopt($ch, CURLOPT_REFERER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_NOBODY, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_HEADER, true);
$result = curl_exec($ch);
if (preg_match('~Location: (.*)~i', $result, $match)) {
$location = trim($match[1]);
header('Location:' . $location);
}