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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 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.4.16, 8.5.0 - 8.5.1: 95
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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