PDO using PDO::FETCH_PROPS_LATE and __construct() call?

Question

I\'m trying to create a new instance of Setting object calling __construct() method with PHP PDO and constrain PDO::FETCH_

Answer 1

You have a non defaulted parameter $key in your constructor:

public function __construct($key, $value = null, $displayable = 1)

So, when you are doing this:

$settings = $stmt->fetchAll(PDO::FETCH_CLASS|PDO::FETCH_PROPS_LATE,'Setting');

Error: warning: Missing argument 1 for Setting::__construct() in pdo.php is thrown only for parameter $key because it is not defaulted.

The correct use of fetchAll(PDO::FETCH_CLASS|PDO::FETCH_PROPS_LATE,... is like this:

$variable = $stmt->fetchAll(PDO::FETCH_CLASS|PDO::FETCH_PROPS_LATE,
                           'classname', 
                            <array of parameter names(in order) used in constructor>);

So, in your case:

$variable = $stmt->fetchAll(PDO::FETCH_CLASS|PDO::FETCH_PROPS_LATE,
                            'Setting', 
                             array('key', 'value', 'displayable');