<?php

    // memcache test
    $server = 'localhost';
    if (!empty($_REQUEST['server'])) {
        $server = $_REQUEST['server'];
    }
    $memcache = new Memcache;
    $isMemcacheAvailable = @$memcache->connect($server);
    // check memcache
    if ($isMemcacheAvailable) {
        // set a key
        $memcache->set($name, $name_key, 0, 86400); // set for 1 day, destroy on logout
    }
    else {
        echo "memcache not available";
    }