Description:
------------
I got 3 classes:

abstract class BlogApi
{
    protected $blogUrl  = false;
    // other properties

    public function setup($blogUrl, $username, $password, $blogId = 1)
    {
        $this->blogUrl  = $blogUrl;
        $this->username = $username;
        $this->password = $password;
        $this->blogId   = $blogId;
        
        return $this;
    }
    // rest of methods
}

abstract class BloggerApi extends BlogApi
{
    // some methods specyfic for BloggerApi
    
}

class WordPress extends BloggerApi
{
    // some methods
    public function publish()
    {
        return $this->publishToBlog(rtrim($this->blogUrl, '/').'/xmlrpc.php');
    }
}


Now when I start with:

$wp = new WordPress;
$wp->setup('some_url', 'usr_name', 'pwd', 1);
// another method to set-up post subject & body
$wp->publish();

I got error:

Fatal error: Cannot access protected property WordPress::$blogUrl in ....

Strange is, that code worked well in PHP 5.1.6-5 on Debian.

Actual result:
--------------
Fatal error: Cannot access protected property WordPress::$blogUrl in ...