Print mod_rewrite server variables using special mod_rewrite rules exporting internal variables via environment variables and PHP script printing there vars.

modrewrite-htaccess

RewriteEngine On
 
# special mod_rewrite variables
RewriteRule .* - [E=MR_SPECIALS_API_VERSION:%{API_VERSION},NE]
RewriteRule .* - [E=MR_SPECIALS_THE_REQUEST:%{THE_REQUEST},NE]
RewriteRule .* - [E=MR_SPECIALS_REQUEST_URI:%{REQUEST_URI},NE]
RewriteRule .* - [E=MR_SPECIALS_REQUEST_FILENAME:%{REQUEST_FILENAME},NE]
RewriteRule .* - [E=MR_SPECIALS_IS_SUBREQ:%{IS_SUBREQ},NE]
RewriteRule .* - [E=MR_SPECIALS_HTTPS:%{HTTPS},NE]
 
# http headers
RewriteRule .* - [E=MR_HEADERS_HTTP_USER_AGENT:%{HTTP_USER_AGENT},NE]
RewriteRule .* - [E=MR_HEADERS_HTTP_REFERER:%{HTTP_REFERER},NE]
RewriteRule .* - [E=MR_HEADERS_HTTP_COOKIE:%{HTTP_COOKIE},NE]
RewriteRule .* - [E=MR_HEADERS_HTTP_FORWARDED:%{HTTP_FORWARDED},NE]
RewriteRule .* - [E=MR_HEADERS_HTTP_HOST:%{HTTP_HOST},NE]
RewriteRule .* - [E=MR_HEADERS_HTTP_PROXY_CONNECTION:%{HTTP_PROXY_CONNECTION},NE]
RewriteRule .* - [E=MR_HEADERS_HTTP_ACCEPT:%{HTTP_ACCEPT},NE]
 
# connection & request
RewriteRule .* - [E=MR_REQUEST_REMOTE_ADDR:%{REMOTE_ADDR},NE]
RewriteRule .* - [E=MR_REQUEST_REMOTE_HOST:%{REMOTE_HOST},NE]
RewriteRule .* - [E=MR_REQUEST_REMOTE_PORT:%{REMOTE_PORT},NE]
RewriteRule .* - [E=MR_REQUEST_REMOTE_USER:%{REMOTE_USER},NE]
RewriteRule .* - [E=MR_REQUEST_REMOTE_IDENT:%{REMOTE_IDENT},NE]
RewriteRule .* - [E=MR_REQUEST_REQUEST_METHOD:%{REQUEST_METHOD},NE]
RewriteRule .* - [E=MR_REQUEST_SCRIPT_FILENAME:%{SCRIPT_FILENAME},NE]
RewriteRule .* - [E=MR_REQUEST_PATH_INFO:%{PATH_INFO},NE]
RewriteRule .* - [E=MR_REQUEST_QUERY_STRING:%{QUERY_STRING},NE]
RewriteRule .* - [E=MR_REQUEST_AUTH_TYPE:%{AUTH_TYPE},NE]
 
# server internals
RewriteRule .* - [E=MR_SERVER_DOCUMENT_ROOT:%{DOCUMENT_ROOT},NE]
RewriteRule .* - [E=MR_SERVER_SERVER_ADMIN:%{SERVER_ADMIN},NE]
RewriteRule .* - [E=MR_SERVER_SERVER_NAME:%{SERVER_NAME},NE]
RewriteRule .* - [E=MR_SERVER_SERVER_ADDR:%{SERVER_ADDR},NE]
RewriteRule .* - [E=MR_SERVER_SERVER_PORT:%{SERVER_PORT},NE]
RewriteRule .* - [E=MR_SERVER_SERVER_PROTOCOL:%{SERVER_PROTOCOL},NE]
RewriteRule .* - [E=MR_SERVER_SERVER_SOFTWARE:%{SERVER_SOFTWARE},NE]
 
# system stuff
RewriteRule .* - [E=MR_SYSTEM_TIME_YEAR:%{TIME_YEAR},NE]
RewriteRule .* - [E=MR_SYSTEM_TIME_MON:%{TIME_MON},NE]
RewriteRule .* - [E=MR_SYSTEM_TIME_DAY:%{TIME_DAY},NE]
RewriteRule .* - [E=MR_SYSTEM_TIME_HOUR:%{TIME_HOUR},NE]
RewriteRule .* - [E=MR_SYSTEM_TIME_MIN:%{TIME_MIN},NE]
RewriteRule .* - [E=MR_SYSTEM_TIME_SEC:%{TIME_SEC},NE]
RewriteRule .* - [E=MR_SYSTEM_TIME_WDAY:%{TIME_WDAY},NE]
RewriteRule .* - [E=MR_SYSTEM_TIME:%{TIME},NE]

modrewrite-servervars-output

mod_rewrite specials

  API_VERSION = 20051115:30
	THE_REQUEST = GET /modrewrite/servervars.php HTTP/1.1
	REQUEST_URI = /modrewrite/servervars.php
	REQUEST_FILENAME = /Users/s6urik/Sites/localhost/docroot/modrewrite/servervars.php
	IS_SUBREQ = false
	HTTPS = off

HTTP headers

	HTTP_USER_AGENT = Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.65 Safari/537.36
	HTTP_REFERER = http://localhost/modrewrite/
	HTTP_COOKIE = SQLiteManager_currentLangue=2
	HTTP_FORWARDED = 
	HTTP_HOST = localhost
	HTTP_PROXY_CONNECTION = 
	HTTP_ACCEPT = text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8

connection & request

	REMOTE_ADDR = ::1
	REMOTE_HOST = ::1
	REMOTE_PORT = 64570
	REMOTE_USER = 
	REMOTE_IDENT = 
	REQUEST_METHOD = GET
	SCRIPT_FILENAME = /Users/s6urik/Sites/localhost/docroot/modrewrite/servervars.php
	PATH_INFO = 
	QUERY_STRING = 
	AUTH_TYPE = 

server internals

	DOCUMENT_ROOT = /Library/WebServer/Documents
	SERVER_ADMIN = you@example.com
	SERVER_NAME = localhost
	SERVER_ADDR = ::1
	SERVER_PORT = 80
	SERVER_PROTOCOL = HTTP/1.1
	SERVER_SOFTWARE = Apache/2.2.22 (Unix) DAV/2 PHP/5.5.3 mod_ssl/2.2.22 OpenSSL/0.9.8x

system stuff

	TIME_YEAR = 2013
	TIME_MON = 09
	TIME_DAY = 09
	TIME_HOUR = 18
	TIME_MIN = 03
	TIME_SEC = 32
	TIME_WDAY = 1
	TIME = 20130909180332

modrewrite-servervars.php

<?php
header('Content-type: text/plain');

$types = array(
    'MR_SPECIALS' => 'mod_rewrite specials',
    'MR_HEADERS' => 'HTTP headers',
    'MR_REQUEST' => 'connection & request',
    'MR_SERVER' => 'server internals',
    'MR_SYSTEM' => 'system stuff',
);

foreach ($types as $prefix => $title) {
    echo "\n$title\n\n";
    $length = strlen($prefix);
    foreach ($_SERVER as $k => $v) {
        if (!strncmp($prefix, $k, $length)) {
            $name = substr($k, $length + 1);
            echo "\t$name = $v\n";
            unset($_SERVER[$k]);
        }
    }
}