Online PHP editor | rfc for F0kti

<?php interface GoAlgorithm { public function go(); } class GoByDrivingAlgorithm implements GoAlgorithm { public function go() { echo "Now I'm driving." .PHP_EOL; } } class GoByFlying implements GoAlgorithm { public function go() { echo "Now I'm flying." . PHP_EOL; } } class GoByFlyingFast implements GoAlgorithm { public function go() { echo "Now I'm flying fast" . PHP_EOL; } } class Vehicle { private $goAlgorithm; public function __construct(GoAlgorithm $goType = null) { parent::__construct(); $this->goAlgorithm = $goType; } public function setModeOfTransportation(GoAlgorithm $goType) { $this->goAlgorithm = $goType; } public function drive() { return $this->goAlgorithm->go(); } } // setter injection $streetRacer = new Vehicle(); $streetRacer->setModeOfTransportation(new GoByDrivingAlgorithm()); $formulaone = new Vehicle(); $formulaone->setModeOfTransportation(new GoByDrivingAlgorithm()); $helicopter = new Vehicle(); $helicopter->setModeOfTransportation(new GoByFlying()); $jets = new Vehicle(); $jets->setModeOfTransportation(new GoByFlyingFast()); $streetRacer->drive(); $formulaone->drive(); $helicopter->drive(); $jets->drive(); // constructor injection $streetRacer = new Vehicle(new GoByDrivingAlgorithm()); $formulaone = new Vehicle(new GoByDrivingAlgorithm()); $helicopter = new Vehicle(new GoByFlying()); $jets = new Vehicle(new GoByFlyingFast()); $streetRacer->drive(); $formulaone->drive(); $helicopter->drive(); $jets->drive();

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