<?php

function apache_lookup_uri(string $filename): object|false {}

function virtual(string $uri): bool {}

function apache_request_headers(): array {}

function getallheaders(): array {}

function apache_response_headers(): array {}

function apache_note(string $note_name, string $note_value = UNKNOWN): string|false {}

function apache_setenv(string $variable, string $value, bool $walk_to_top = false): bool {}

function apache_getenv(string $variable, bool $walk_to_top = false): string|false {}

function apache_get_version(): string|false {}

function apache_get_modules(): array {}