typehinting.php

<?php
// http://php.net/manual/en/language.oop5.typehinting.php says that type-hinted PHP parameter
// that has no default value set to null can't be null. But are you sure?

// First, register error handler which do nothing and return nothing (this is important!)
set_error_handler(function () {});

class SomeClass {}

function test(SomeClass $instance) {var_dump($instance);}


// NOTE: E_RECOVERABLE_ERROR (4096) occurs here
test(null);

// But what is this?! We have NULL in output! Are you surprised? 

Thanks all, I have a clue what's wrong with this code. This gist just shows weird behavior I met during debugging strange NULL value for typehinted argument.