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@ 2015-10-02T09:53:07Z

<?php

class Kitchen
{
    private $yummy = 'cake';
}

class Mapper
{
    public function map(Kitchen $kitchen, array $data)
    {
        $mapper = $this;
        
        $map = function (Kitchen $kitchen, array $data) use ($mapper) {
            $mapper->setYummy($kitchen, $data);
        };
        
        $map = Closure::bind($map, null, $kitchen);
        $map($kitchen, $data);
    }
    
    public function setYummy(Kitchen $kitchen, array $data)
    {
        $kitchen->yummy = $data['yummy'];
    }
}

$kitchen = new Kitchen;
$mapper = new Mapper;
$mapper->map($kitchen, ['yummy' => 'cookie']);
var_dump($kitchen);


/*
$sweetsThief = function (Kitchen $kitchen) {
    return $kitchen->yummy;
};

$sweetsCop = function (Kitchen $kitchen, $yummy) {
    $kitchen->yummy = $yummy;
};

$kitchen = new Kitchen();

$sweetsThief = Closure::bind($sweetsThief, null, $kitchen);
$sweetsCop = Closure::bind($sweetsCop, null, $kitchen);

var_dump($sweetsThief($kitchen));
$sweetsCop($kitchen, 'lie');
var_dump($sweetsThief($kitchen));
*/

Output for git.master, git.master_jit, rfc.property-hooks: Fatal error: Uncaught Error: Cannot access private property Kitchen::$yummy in /in/oK89U:24 Stack trace: #0 /in/oK89U(15): Mapper->setYummy(Object(Kitchen), Array) #1 /in/oK89U(19): Kitchen::{closure}(Object(Kitchen), Array) #2 /in/oK89U(30): Mapper->map(Object(Kitchen), Array) #3 {main} thrown in /in/oK89U on line 24
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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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