memcache.php

<?php
	global $memcache_obj;
	global $memcache_key;
	global $html;

	$server = 'localhost';
	$port = '11211';

	$protocol = ($_SERVER['HTTPS'] == 'on') ? 'https' : 'http';
	$memcache_key = md5($protocol.'://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'].'|'.serialize($_POST).'|'.serialize($_SESSION));
	$memcache_obj = memcache_connect($server, (int)$port);
	$html = memcache_get($memcache_obj, $memcache_key);
	if ($html)
	{
		echo $html;
		exit;
	}
	ob_start();
?>

<?php
	global $memcache_obj;
	global $memcache_key;
	global $html;

	// get the generate HTML, store it in memcache, and output it to the user 
	$html = ob_get_contents();
	memcache_add($memcache_obj, $memcache_key, $html, false, 600);
	ob_end_flush();
?>