how to use phpfastcache? [closed]

this is my main query in index.php file

and i try cache this query with phpfastcache ( http://www.phpfastcache.com/ )

$shorting = $conn->prepare("SELECT text,time FROM small WHERE active='0' ORDER BY time DESC LIMIT 10");
$shorting->execute();
while($obj = $shorting->fetch(PDO::FETCH_OBJ)){

<div id="lastnews_title">
<div><?php echo $obj->text; ?></div>
<div style="text-align:left">
<?php echo timeTonow($obj->time); ?>
</div>

this is an example in phpfastcache site

// Require Library
require_once("../phpfastcache/phpfastcache.php");

// simple Caching with:
$cache = phpFastCache();

// Try to get $products from Caching First
// product_page is "identity keyword";
$products = $cache->get("product_page");

if($products == null) {
    $products = "DB QUERIES | FUNCTION_GET_PRODUCTS | ARRAY | STRING | OBJECTS";
    // Write products to Cache in 10 minutes with same keyword
    $cache->set("product_page",$products , 600);
}

// use your products here or return it;
echo $products;

i write require_once("../phpfastcache/phpfastcache.php"); in my index.php

but i dont know how can i insert my query in this cache class?

sorry for bad english