<?php

//
// apt-get install php5-memcache
//

$memcache_enabled = extension_loaded('memcached');

if ($memcache_enabled) {
    echo 'extension loaded';
} else {
    echo 'extension not loaded';
}

$mc = new Memcached();
$mc->connect('localhost', 11211);

print_r($mc->getStats());