traitとtraitを合体させるテスト

trait_aggregate.php

<?php

trait Hello {

    public function hello(){
        echo "hello\n";
    }
}

trait World {

    public function world(){
        echo "world\n";
    }
}

trait HelloWorld {
    use Hello, World;

    public function helloWorld(){
        $this->hello();
        $this->world();
    }
}

class Test {
    use HelloWorld;
}

$test = new Test();
$test->helloWorld();

$test->hello();
$test->world();
?>

実行結果
hello //helloWorldメソッドの結果
world //
hello //Hello traitのメソッドも
world //World traitのメソッドも利用出来る