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@ 2024-11-13T07:49:24Z

<?php

declare(strict_types=1);

interface HasId {
    public string $id { get; set; }
}

class Foo implements HasId {
    function __construct(
        public string $id {
            get => '#' . $this->id;
            set (string $id) => $this->id = mb_strtoupper($id);
        },
    ) {}
}

class Bar implements HasId {
    function __construct(public string $id) {}
}

class Baz {
    public function display(HasId $object): void
    {
        echo $object->id . PHP_EOL;
    }
    
    public function update(HasId $object, string $id): void{
        $object->id = $id;
        $this->display($object);
    }
}

$foo = new Foo(id: 'FOO');
$bar = new Bar(id: 'BAR');
$baz = new Baz();

$baz->display($foo);
$baz->update($foo, 'foo');

$baz->display($bar);
$baz->update($bar, 'bar');

Output for git.master: #FOO #FOO BAR bar

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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