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<?php

/**
*   Author: Markus Diersbock <markus@swingnote.com>
*/
class Vehicle {

    public $make;
    public $model;
    public $type;
    public $year;

    public function __construct(array $initializers =  null) {
        if ($initializers) {
            // set properties or throw if invalid
            foreach ($initializers as $property => $value)
                    $this->{$property} = $value;
        }
    }

    public function __set($name, $value) {
        throw new Exception("Unknown Property {$name}");
    }
};

$lead->addVehicle(new Vehicle(array(
    "make" => "Lexus",
    "model" => "RX 300",
    "type" => "SUV",
    "year" => "1999"))
);