How to describe the structure of a PHP object?

Question

PHP

Good time,
php code: What will the classes that can describe such code look like?
$base->test('string1') ->chek('string')->hello;

Answer 1

To make a "cascade" of successive methods, you need to return the same object in each method.

class Base {
  
  public function test($string){
    // Что то делаем.
    return $this;
  }
  
  public function chek($string){
    // Что то делаем.
    return $this;
  }
  
  public function hello(){
    // Что то делаем.
    return $this;
  }
}

And it is more convenient to write in code like this:

$base
->test('string1')
->chek('string')
->hello();