Accessing private/protected properties of an object in anonymous function in PHP

Question

I\'m trying to dump elements of an object\'s private property through an anonymous function - of course I could achieve this in any number of other ways, but this highlights

Answer 1

You can hack around the limitation by creating a wrapper that utilizes Reflection to allow you to access all properties and methods. You can use it like this then:

$self = new FullAccessWrapper($this);
function () use ($self) { /* ... */ }

Here a sample implementation of the wrapper, taken from here:

class FullAccessWrapper
{
    protected $_self;
    protected $_refl;

    public function __construct($self)
    {
        $this->_self = $self;
        $this->_refl = new ReflectionObject($self);
    }

    public function __call($method, $args)
    {
        $mrefl = $this->_refl->getMethod($method);
        $mrefl->setAccessible(true);
        return $mrefl->invokeArgs($this->_self, $args);
    }

    public function __set($name, $value)
    {
        $prefl = $this->_refl->getProperty($name);
        $prefl->setAccessible(true);
        $prefl->setValue($this->_self, $value);
    }

    public function __get($name)
    {
        $prefl = $this->_refl->getProperty($name);
        $prefl->setAccessible(true);
        return $prefl->getValue($this->_self);
    }

    public function __isset($name)
    {
        $value = $this->__get($name);
        return isset($value);
    }
}

Obviously the above implementation doesn't cover all aspects (e.g. it can't use magic properties and methods).