brzuchal

===========================================
 Namespace: 'PHPTest'
===========================================
Array
(
    [name] => PHPTest
    [internal] => 
    [user-defined] => 1
    [parent] => ReflectionNamespace Object
        (

brzuchal

<?php

final immutable class Currency {}
final immutable class Money {
  public $amount;
  public $currency;
  public function __construct(float $amount, Currency $currency) {
    $this->amount = $amount;
    $this->currency = $currency;
  }

brzuchal

<?php

immutable class Currency
{
  /** @var string */
  public $code; // this will change to readonly after constructor execution
  /** @var string */
  public $name; // this will change to readonly after constructor execution
  /** @var int */
  public $fractionDigits;

brzuchal

<?php
package MyVendor\MyLibrary // acts same as `namespace` but changes all classes into package-private
{
    namespace MyInternalStuff // cause current namespace would be MyVendor\MyLibrary\MyInternalStuff
    {
        class MyNonPublicWidget // class name would be MyVendor\MyLibrary\MyInternalStuff\MyNonPublicWidget
        {
    
        }
    }

brzuchal

<?php
class Article {
    private final $comments = [];
    public function addComment(Comment $comment) {
        $this->comments[] = $comment;
    }
    public function clearComments() {
        $this->comments = [];
    }
}