Is it possible to use curl with relative path in PHP?

Question

I have two php pages. I want to fetch b.php in a.php.

In my a.php:

$ch = curl_init(\"b.php\");
echo(curl_exec($ch));
curl_close($ch);

Answer 1

How about taking the domain from HTTP_HOST?

$domain = $_SERVER['HTTP_HOST'];
$prefix = $_SERVER['HTTPS'] ? 'https://' : 'http://';
$relative = '/b.php';
$ch = curl_init($prefix.$domain.$relative);
echo(curl_exec($ch));
curl_close($ch);