Просмотр поста

class A {
    private $b;

    public function b() {
      $this->b = new B($this);
      return $this->b;
    }
}
     
class B {
    private $a;

    public function __construct(A $a){
      $this->a = $a;
    }

    public function test() {
      return $this;
    }

    public function a() {
      return $this->a;
    }
}
     
$obj = new A;
$obj->b()->test()->a()->...(...);