Test memcached modula distribution algorithm

test.php

<?php

const KEY = 'foo';
const VALUE = 'bar';

$memcached = new Memcached();
$memcached->setOption(Memcached::OPT_DISTRIBUTION, Memcached::DISTRIBUTION_MODULA);
$memcached->addServers([
    ['memcached1', 11211],
    ['memcached2', 11211]
]);

if ($memcached->getStats() === false) {
    echo "memcached servers are offline" . PHP_EOL;
    die();
}

$value = $memcached->get(KEY);

if ($value === false) {
    $result = $memcached->set(KEY, VALUE);
} else {
    echo "fetched key value pair" . PHP_EOL;
    foreach ($memcached->getServerList() as $server) {
        $client = new Memcached();
        $client->addServer($server['host'], $server['port']);
        printf("%s -> %s" . PHP_EOL, $server['host'], implode(',', $client->getAllKeys()));
    }
}