<!-- Collection of code snippets by Arne Vajhøj -->
<!-- (from articles on eksperten.dk / vajhoej.dk written sometime between 2004 and now) -->
<?php
function test($cache) {
    // basic put, get and remove
    $cache->set('v', 123);
    echo $cache->get('v') . "\r\n";
    $cache->del('v');
    echo $cache->get('v') . "\r\n";
    $cache->set('v', 123);
    echo $cache->get('v') . "\r\n";
    // persistence
    $counter = $cache->get('counter');
    if(!$counter) {
        $counter = 0;
    }
    $counter++;
    echo $counter . "\r\n";
    $cache->set('counter', $counter);
    // list all (simple)
    foreach($cache->keys('*') as $key) {
        echo sprintf("%s = %d\r\n", $key, $cache->get($key));
    }
    // list all (batched)
    $it = NULL;
    while($keys = $cache->scan($it)) {
        foreach($keys as $key) {
            echo sprintf("%s = %d\r\n", $key, $cache->get($key));
        }
    }
    // listener not supported
}
    
define('FUNCTIONAL_CACHE', 0);
$cache = new Redis();
$cache->connect('localhost', 6379);
$cache->select(FUNCTIONAL_CACHE);
test($cache);
$cache->close();
?>