Sample of using PHP SPL Limit Iterator, you can use for the limiting cached objects

LimitIterator.php

<?php

/**
 * Creating dummy data for pagination
 */
$result = array();
for ($i = 0; $i < 100; $i++) {
	$result[$i]['age'] = rand(18, 50);
	$result[$i]['facebook_id'] = rand(1000000, 9999999);
}

/**
 * Defining limit and offset
 */
$limit = 10;
$page = 5;

/**
 * We will use Limit Iterator for filtering data
 */
foreach (new LimitIterator(new ArrayIterator($result), $page * $limit, $limit) as $key => $value) {
	var_dump($key, $value);
}