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<?php abstract class Vehicle { protected static $wheels = 4; public function wheels() { return get_class($this) . " has " . static::$wheels . " wheels\n"; } } class Bike extends Vehicle { protected static $wheels = 2; } class Car extends Vehicle { protected static $wheels = 4; } class Car_With_Trailer extends Car { protected static $wheels = 6; } $bike = new Bike(); $car = new Car(); $car_with_trailer = new Car_With_Trailer(); print $car->wheels(); print $bike->wheels(); print $car_with_trailer->wheels();
Output for git.master, git.master_jit, rfc.property-hooks
Car has 4 wheels Bike has 2 wheels Car_With_Trailer has 6 wheels

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