Here is a snapshot of my code:
$fetchPictures = $PDO->prepare(\"SELECT *
FROM pictures
WHERE album = :albumId
ORDER BY id ASC
LIMIT :s
The simplest solution would be to switch the emulation mode off. You can do it by simply adding the following line
$PDO->setAttribute( PDO::ATTR_EMULATE_PREPARES, false );
Also, this mode can be set as a constructor parameter when creating a PDO connection. It could be a better solution as some report their driver doesn't support the setAttribute() function.
It will not only solve your problem with binding, but also let you send values directly into execute(), which will make your code dramatically shorter. Assuming the emulation mode has been already set, the whole affair will take as much as half a dozen lines of code
$skip = isset($_GET['skip']) ? (int)trim($_GET['skip']) : 0;
$sql = "SELECT * FROM pictures WHERE album = ? ORDER BY id LIMIT ?, ?";
$stmt = $PDO->prepare($sql);
$stmt->execute([$_GET['albumid'], $skip, $max]);
$pictures = $stmt->fetchAll(PDO::FETCH_ASSOC);