Twig template engine not reading object properties

Question

Twig lets you pass array or object to the template and gives you the same interface to access members for both data structures. So, for example:

$test = array('foo' => 'foo', 'bar' => 'bar');

Will let you access this in template as test.foo and test.bar

Now instance of this object will have the same effect. Which is very awesome :)

class test
{
    public $foo;
    public $bar;
}

How about an object that uses magic __set and __get methods?

class test
{
    public $properties;

    public function __set($name, $value)
    {
        $this->properties[$name] = $value;
    }

    public function __get($name)
    {
        return $this->properties[$name];
    }
}

Unfortunately in this case you can't access properties of this object. I'm not sure if the Twig is the issue here or PHP itself.

Answer 1

You need to implement __isset() as well, eg

public function __isset($name) {
    return array_key_exists($name, $this->properties);
}

See http://twig.sensiolabs.org/doc/recipes.html#using-dynamic-object-properties