Hiding PHP's X-Powered-By header

Question

I know in PHP, it sends the X-Powered-By header to have the PHP version.

I also know by appending some checksums, you can get access to PHP\'s credits,

Answer 1

Headers are "collected" by PHP before being sent back to the browser, so that you can override things like the status header. The way to test it is go to a command prompt, and type:

telnet www.yoursite.com 80
GET /index.php HTTP/1.1
[ENTER]
[ENTER]

And you'll see the headers that are sent in the response (replace /index.php with the URL of your PHP page after the domain.)