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@ 2019-02-02T17:07:23Z

<?php
final class A extends B
{
    private $B;
    public function __construct(array $config)
    {
        $this->B = new B($config);
    }
    public function check(int $id)
    {
        if ( $this->checkSomething($id) )
        {
            // ...
        }
    }
    public function setLang(string $lang)
    {
        $this->repository->setLang($lang);
    }
    public function getB()
    {
        return $B;
    }
}
class B
{
    protected $repository;
    protected function __construct(array $config)
    {
        $this->repository = new Repository ($config);
    }
    protected function checkSomething(int $id)
    {
        if ( $this->repository->checkById($id) )
        {
            return TRUE;
        }
    }
    public function get()
    {
        return 'whatever';
    }
}
$config = ['some', 'config'];
$A = new A($config);
echo $A->getB()->get();

Output for git.master, git.master_jit, rfc.property-hooks: Fatal error: Uncaught Error: Class "Repository" not found in /in/1TYDT:30 Stack trace: #0 /in/1TYDT(7): B->__construct(Array) #1 /in/1TYDT(45): A->__construct(Array) #2 {main} thrown in /in/1TYDT on line 30
Process exited with code 255.

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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