laatste item? (Opgelost)

if($result = $dbc->query($sql)) {
	while($row = $result->fetch_assoc()) {
		$post = new Post($row['id']);
		$post->output();
	}
}

if($result = $dbc->query($sql)) {
	while($row = $result->fetch_assoc()) {
		$post = new Post($row['id']);
		$post->output();
	}
}