HTTP Request Header Contents

<?php print_r($_SERVER) ?>

Array
(
    [HTTP_X_CC_ID] => ccc04-01
    [HTTP_HOST] => co-project.lboro.ac.uk
    [HTTP_USER_AGENT] => CCBot/1.0 (+http://www.commoncrawl.org/bot.html)
    [HTTP_ACCEPT] => text/html,application/xhtml+xml,text/xml;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
    [HTTP_ACCEPT_LANGUAGE] => en-us,en;q=0.5
    [HTTP_ACCEPT_ENCODING] => gzip
    [HTTP_ACCEPT_CHARSET] => ISO-8859-1,utf-8;q=0.7,*;q=0.7
    [HTTP_CONNECTION] => close
    [HTTP_CACHE_CONTROL] => no-cache
    [HTTP_PRAGMA] => no-cache
    [HTTP_COOKIE] => PHPSESSID=ovkq9p2p3e2jheghftn6ippha4
    [PATH] => /sbin:/usr/sbin:/bin:/usr/bin
    [SERVER_SIGNATURE] => 
    [SERVER_SOFTWARE] => Apache/2.2.17 (Fedora)
    [SERVER_NAME] => co-project.lboro.ac.uk
    [SERVER_ADDR] => 158.125.108.2
    [SERVER_PORT] => 80
    [REMOTE_ADDR] => 38.107.179.236
    [DOCUMENT_ROOT] => /diska/www/htdocs
    [SERVER_ADMIN] => J.R.Pitchers@lboro.ac.uk
    [SCRIPT_FILENAME] => /diska/www/htdocs/users/coas/learn/http-request-header.php
    [REMOTE_PORT] => 40422
    [GATEWAY_INTERFACE] => CGI/1.1
    [SERVER_PROTOCOL] => HTTP/1.1
    [REQUEST_METHOD] => GET
    [QUERY_STRING] => 
    [REQUEST_URI] => /users/coas/learn/http-request-header.php
    [SCRIPT_NAME] => /users/coas/learn/http-request-header.php
    [PHP_SELF] => /users/coas/learn/http-request-header.php
    [REQUEST_TIME] => 1337199917
)

Source

<?php
header('Content-Type: text/html; charset=utf-8');
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 TRANSITIONAL//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<style type="text/css">
</style>
<title></title>
</head>
<body>
<h1> HTTP Request Header Contents</h1>
<h3> <?php print_r($_SERVER) ?></h3>

<pre>
<?php print_r($_SERVER); ?>
</pre>

</body>
</html>