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<?php interface Cryable { public function cry(); } interface Movable { public function move(); } trait MoveGround { public function move() { echo 'トコトコ' . PHP_EOL; return $this; } } trait MoveAir { public function move() { echo 'ヒュー' . PHP_EOL; return $this; } } abstract class Animal implements Cryable, Movable { protected $age; public function __construct($age) { $this->age = $age; } } class Cat extends Animal { use MoveGround; public function cry() { echo "ニャー({$this->age})" . PHP_EOL; return $this; } } class Bird extends Animal { use MoveAir; public function cry() { echo "鳥です({$this->age})" . PHP_EOL; return $this; } } (new Cat(5))->cry()->move(); (new Bird(7))->move()->cry(); |
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ニャー(5) トコトコ ヒュー 鳥です(7) |
