Description:
------------
The following script causes PHP to crash.

I initially noticed it on my hosting, but since it uses nginx as a frontend server 
I can't confirm that bug appears on linux as well, as all I see is a 500 error.

Test script:
---------------
<?php

class Foo
{
    public function test()
    {
        return $this->test();
    }
}

$foo = new Foo;
$foo->test();

Expected result:
----------------
Either out of memory or max execution time exceeded error

Actual result:
--------------
Crash