// ColumnFamily::add() is the easiest way to increment a counter
$count_cf->add("key1", "col1");
$results = $count_cf->get("key1");
$current_count = $results["col1"];
echo "After one add(): {$current_count}\n";
// You can specify a value other than 1 to adjust the counter by
$count_cf->add("key1", "col1", 10);
$results = $count_cf->get("key1");
$current_count = $results["col1"];
echo "After add(10): {$current_count}\n";
// ColumnFamily::insert() will also increment values, but you can
// adjust multiple columns at the same time
$count_cf->insert("key1", array("col1" => 3, "col2" => -1));
$results = $count_cf->get("key1");
$current_count = $results["col1"];
echo "After insert(3): {$current_count}\n\n";
// And ColumnFamily::batch_insert() lets you increment counters
// in multiple rows at the same time
$count_cf->batch_insert(array("key1" => array("col1" => 1, "col2" => -1), "key2" => array("col1" => 16)));
echo "After batch_insert:\n";
print_r($count_cf->multiget(array("key1", "key2")));
// ColumnFamily::remove_counter() should basically only be used when you
// will *never* use a counter again
$count_cf->remove_counter("key1", "col1");
echo "\nRow key1 after remove_counter(key1, col1):\n";
print_r($count_cf->get("key1"));
// Destroy our schema
$sys->drop_keyspace("Keyspace1");
// Close our connections
$pool->close();
$sys->close();
