Comments on: Real programming with PHP 5.3 (part 2): JavaScript-style classes

By: Dellorbo Giulio

Dellorbo Giulio — Thu, 01 Oct 2009 18:01:38 +0000

Hi,

the problem while using closures to add methods is that the closure cannot access private or protected obj props nor they can call private/protected method’s…

By: PHP 5.3 and PHP 6 the future « 3wstudio

PHP 5.3 and PHP 6 the future « 3wstudio — Sat, 22 Aug 2009 08:16:44 +0000

[...] Real programming with PHP 5.3 (part 2): JavaScript-style classes [...]

By: dagfinn

dagfinn — Mon, 25 May 2009 06:25:08 +0000

@derosion: I admit I haven’t considered that. I’ll have to investigate. I have other examples that I believe would not work if it were a copy.

By: derosion

derosion — Sat, 23 May 2009 18:33:10 +0000

Hey,

I might (probably am) be totally confused here but in reference to your first “hello world” example where you pass in $self as a lexical value to your hello and goodbye functions.

Reading http://wiki.php.net/rfc/closures it says:

“By default, all imported variables are copied as values into the closure.”

So with this said, is $self a copy of $this rather than a reference?

By: dagfinn

dagfinn — Thu, 02 Apr 2009 17:35:00 +0000

@Ionut: I might have noticed it if you had posted it in the PHP Application Design forum. On the other hand, perhaps not. Anyway, it’s interesting that we seem to have four different independent implementations of this idea.

By: Ionut G. Stan

Ionut G. Stan — Thu, 02 Apr 2009 15:01:32 +0000

I had this idea back in August 2008, but at that point nobody seemed to care about it.
I’ve made it public in a thread on sitepoint.com[1], where apparently just one person found it to be interesting.

Yeah, Amenthes is me.

[1] http://www.sitepoint.com/forums/showthread.php?t=565576

By: dagfinn

dagfinn — Thu, 02 Apr 2009 08:07:53 +0000

@Tarjei: Since a method in this style is simply the content in a instance variable, you can overwrite it by whatever means you would otherwise use to change an instance variable. *How* you would want to do that, considering visibility restrictions and so on, is another matter.

By: Tarjei

Tarjei — Thu, 02 Apr 2009 07:33:07 +0000

Is it possible to overwrite existing functions?

In python I find DuckTyping indispensable for testing as I can easily just stub out one function from an object and still test the rest of the object.

By: Lars Gunther

Lars Gunther — Tue, 31 Mar 2009 21:11:01 +0000

Andrea Giammarchi takes this a whole lot further:

http://webreflection.blogspot.com/2009/03/jsphp-javascript-object-like-php-class.html

By: dagfinn

dagfinn — Tue, 31 Mar 2009 16:22:06 +0000

@weltraumschaf: You should be able to do the first two, but not the last one. The closure is an object belonging to the Closure class, but the Closure class has no methods.