How to check if a request if coming from the same server or different server?

Question

How can I check whether a request being received is sent from the same server??

Say, I\'ve my domain at www.domain.com. Now I\'ve php processing files which will pro

Answer 1

this will check if there is a referer, then it will compare it with current domain, if different then it is from outside referer

if ((isset($_SERVER['HTTP_REFERER']) && !empty($_SERVER['HTTP_REFERER']))) {
if (strtolower(parse_url($_SERVER['HTTP_REFERER'], PHP_URL_HOST)) != strtolower($_SERVER['HTTP_HOST'])) {
// referer not from the same domain
}
}