Comments on: Metadata/Attributes in PHP

By: PCSpectra

PCSpectra — Tue, 25 Nov 2008 02:39:26 +0000

Excellent idea…in fact dare I say brilliant?

I've been poking around for a while now trying to figure out a way to use reflection that would be “interesting” and “innovative” I think this might be it.

The part where you said, using reflection to obtain meta data and have that information be discoverable rather than declarative…I'm not sure I agree 100% but the idea of marking my methods as REST-able (for lack of a better word) by indicating that in the comment as meta-data…

Damn thats a good idea and I owe it all to this article.

Cheers,
Alex

By: jawngee

jawngee — Sun, 03 Aug 2008 04:41:57 +0000

JSON would be great here as well. Honestly, the only reason I chose YAML is because all of our other configuration is done with that.

By: Kevin

Kevin — Sun, 03 Aug 2008 04:03:55 +0000

I had an idea that might work out well in replacement for the format. Maybe using a JSON object and parsing it with json_decode. That way it's converted to an associated array on it's own without the need to convert it manually.

By: jawngee

jawngee — Fri, 01 Aug 2008 19:06:07 +0000

Well, it definitely isn't blazing fast, but I don't believe the overhead is too taxing. That said, we use APC's shared memory cache to cache metadata so that we only really load it when the application starts up (the cache sticks around until you restart the server or until APC restarts itself). Using this strategy, once it's cached it's barely noticeable.

You could do the same thing using memcached, but APC's is much faster as the memory is local to its process.

By: Kevin

Kevin — Fri, 01 Aug 2008 14:09:51 +0000

Thank you so much… You just saved me a ton of time.

Any speed issues using this approach?

By: quocbao

quocbao — Wed, 16 Jul 2008 15:24:06 +0000

Your post was quite wonderful , I just translate the technique, give your example.

Thanks for your nice post

By: PHP MetaData | Bao's blog

PHP MetaData | Bao's blog — Thu, 03 Jul 2008 13:02:38 +0000

[...] m?t th?i gian tìm hi?u thì c?ng có ng??i ??a ra gi?i pháp . Trong PHP không có c? ch? ??nh ngh?a meta data c? th?, tuy [...]

By: jgmassify

jgmassify — Sat, 21 Jun 2008 04:44:19 +0000

Nice one.

Yeah, it's unfortunate that this is really a huge hack to get a language feature that would be a nice to have.

I'm going to be re-posting a patch for PHP that enables array shortcut notation in the next couple of days. The patch was originally by Ryusuke Sekiyama, posted here: http://marc.info/?l=php-internals&m=11999597202...

Instead of using array() you can use [], eg:

$var=[1,2,3,4];
$othervar=[ 'test' => [1,2], 'sick' => [1,[3,4]]];

By: david

david — Thu, 19 Jun 2008 16:10:20 +0000

I use annotations with a array style notation like:

/**
* @someAnno(1=>2, "yeah"=> array("no","yes"))
*/

It's really too bad that the language itself doesn't support it (outside doc comments) as it would be much faster and not require the caching.

By: James Carr

James Carr — Wed, 18 Jun 2008 10:48:08 +0000

That's VERY interesting