I get a "Non static method" error after upgrading to PHP 8.1-CodePudding

I have the following PHP error after upgrading from PHP7.4 to PHP8.1

$result = CarsDAO::selectCarsByColor($idCar, self::CARS_PER_PAGE, 0);

Non static method 'selectCarsByColor' should not be called statically

Any ideas how to rewrite this to be OK?

CodePudding user response：

As the error says, the method is not static in the CarsDAO class, so you should call it on an instance.

$car    = new CarsDAO();
$result = $car->selectCarsByColor($idCar, self::CARS_PER_PAGE, 0);

or repair the class by making the method static adding the static keyword in front of the method declaration. Read about static in the manual.

class CarsDAO {
    public static function selectCarsByColor($idCar, $carsPerPage, $zeroThing) {
    // code here
    }
}