$ curl -sS -D - -o /dev/null -X FOO https://stealmybitcoin.com/
HTTP/1.1 501 Not Implemented
Server: nginx
Date: Sat, 24 Oct 2026 22:06:58 GMT
Content-Type: text/html; charset=UTF-8
Content-Length: 495
Connection: keep-alive
Host: stealmybitcoin.com
X-Powered-By: PHP/8.4.26
So expose_php is On and he filters X-Powered-By in the response when legal HTTP verbs are used, but nothing catches the illegal ones? Interesting.
No, PHP's static handler (php_cli_server_begin_send_static) doesn't emit X-Powered-By but the error page handler (php_cli_server_send_error_page) always does.