Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:44264
Return-Path: <chris_se@gmx.net>
Mailing-List: contact internals-help@lists.php.net; run by ezmlm
Delivered-To: mailing list internals@lists.php.net
Received: (qmail 32492 invoked from network); 13 Jun 2009 17:55:24 -0000
Received: from unknown (HELO lists.php.net) (127.0.0.1)
  by localhost with SMTP; 13 Jun 2009 17:55:24 -0000
Authentication-Results: pb1.pair.com smtp.mail=chris_se@gmx.net; spf=pass; sender-id=pass
Authentication-Results: pb1.pair.com header.from=chris_se@gmx.net; sender-id=pass
Received-SPF: pass (pb1.pair.com: domain gmx.net designates 213.165.64.20 as permitted sender)
X-PHP-List-Original-Sender: chris_se@gmx.net
X-Host-Fingerprint: 213.165.64.20 mail.gmx.net  
Received: from [213.165.64.20] ([213.165.64.20:42633] helo=mail.gmx.net)
	by pb1.pair.com (ecelerity 2.1.1.9-wez r(12769M)) with ESMTP
	id A9/A3-12802-A08E33A4 for <internals@lists.php.net>; Sat, 13 Jun 2009 13:55:23 -0400
Received: (qmail invoked by alias); 13 Jun 2009 17:55:19 -0000
Received: from p54A14DD4.dip.t-dialin.net (EHLO chris-se.dyndns.org) [84.161.77.212]
  by mail.gmx.net (mp009) with SMTP; 13 Jun 2009 19:55:19 +0200
X-Authenticated: #186999
X-Provags-ID: V01U2FsdGVkX1+Ho2xT0liHB6Ri6aBfXz4NkwNMW3jsVX5Ibv56CP
	nKCJYEsi36cERT
Received: from [192.168.100.13] (cobalt.seiler.lan [192.168.100.13])
	by chris-se.dyndns.org (Postfix) with ESMTP id 2500068FE;
	Sat, 13 Jun 2009 19:55:17 +0200 (CEST)
Message-ID: <4A33E7D3.1050904@gmx.net>
Date: Sat, 13 Jun 2009 19:54:27 +0200
User-Agent: Thunderbird 2.0.0.21 (X11/20090302)
MIME-Version: 1.0
To: Greg Beaver <greg@chiaraquartet.net>
CC: php-dev List <internals@lists.php.net>
References: <4A3343A1.4060701@chiaraquartet.net> <4A338AC9.1090100@gmx.net> <4A33D8B8.30203@chiaraquartet.net> <4A33DDDE.4070409@gmx.net> <4A33E2A2.4090305@chiaraquartet.net>
In-Reply-To: <4A33E2A2.4090305@chiaraquartet.net>
X-Enigmail-Version: 0.95.7
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit
X-Y-GMX-Trusted: 0
X-FuHaFi: 0.55
Subject: Re: [PHP-DEV] bug 48541 - critical for PHP 5.3
From: chris_se@gmx.net (Christian Seiler)

Hi Greg,

> (I meant commit when I said patch, sorry :)
> 
> http://news.php.net/php.cvs/58696
> and
> http://news.php.net/php.cvs/58697

Thanks, looks fine to me. However, I noticed that closures don't work
with spl_autoload_unregister() and spl_autoload_functions(). Also,
classes that define __invoke work with spl_autoload_functions() but not
with spl_autoload_unregister() - unless array ($o, '__invoke') is given
to spl_autoload_register() directly, then the same will work for unregister.

Or, to sum it up:

i) Real Closures

$c = function ($class) { var_dump ('foo'); }
spl_autoload_register ($c);

var_dump (spl_autoload_functions ()); // '{closure}'

spl_autoload_unregister ($c); // no effect

ii) Invokables

WORKS:

<?php

class Autoloader {
  private $dir;
  public function __construct ($dir) {
    $this->dir = $dir;
  }
  public function __invoke ($class) {
    var_dump ("{$this->dir}/$class.php");
  }
}

$al1 = new Autoloader ('d1');
$al2 = new Autoloader ('d2');

spl_autoload_register (array ($al1, '__invoke'));
spl_autoload_register (array ($al2, '__invoke'));

var_dump (spl_autoload_functions ());

spl_autoload_unregister (array ($al1, '__invoke'));

$x = new Test;

?>

SEMI-WORKS:

<?php

class Autoloader {
  private $dir;
  public function __construct ($dir) {
    $this->dir = $dir;
  }
  public function __invoke ($class) {
    var_dump ("{$this->dir}/$class.php");
  }
}

$al1 = new Autoloader ('d1');
$al2 = new Autoloader ('d2');

spl_autoload_register ($al1);
spl_autoload_register ($al2);

var_dump (spl_autoload_functions ());
   // gives array ($object, '__invoke') instead of
   // directly $object - but that's at least equivalent

spl_autoload_unregister ($al1);
   // no effect
spl_autoload_unregister (array ($al1, '__invoke'));
   // no effect

$x = new Test;

?>

Regards,
Christian