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@ 2016-10-29T12:28:28Z

<?php
Class Driver {

    private $cars;

    public function __construct() {
        $this->cars = new \stdClass();
        foreach (Car::$all_cars as $car) {
            $this->cars->$car = NULL;
        }
    }
    public function setRating($car, $rating) {
        $this->cars->$car = $rating;
    }
    public function __get($car) {
        return property_exists($this->cars, $car) ? $this->cars->$car : null;
    }
}

Class Car {

    public static $all_cars = array();
    private $name;

    public function __construct($name) {
        $this->name = $name;
        self::$all_cars[] = $this;
    }
    public function __toString() {
        return $this->name;
    }

}

$bmw = new Car('bmw');
$benz = new Car('benz');

$tom = new Driver;
$tom->setRating($bmw, 95);
$tom->setRating($benz, 97);

echo $tom->bmw; // 95

Output for git.master, git.master_jit, rfc.property-hooks: 95

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2022-12-01 RFC: Property hooks - included in PHP 8.4
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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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