how to prevent PHP's file_get_contents( )

Question

one of my php page returns data like this:

but someone else use file_get_contents() to get m

Answer 1

You can use $_SERVER['REMOTE_ADDR'] to get the address of the client address. You can also check $_SERVER['HTTP_REFERER'] and block external requests that way, but it's less reliable. There's probably a few other techniques involving $_SERVER that you can try.