Check if file exists on remote machine

Question

I want to check if a file exists on a remote webserver with php.

I now have this function:

function url_exists($url) {
   // Version 4.x supported
           


        

Answer 1

The remote server probably resolves files using the Host header.
If so, you need to use a domain name.

You may be able to explicitly pass a Host header to the IP address, but I wouldn't recommend it.