Disqus - Latest Comments for troelskn

Re: In one sentence explain closures

troelskn — Mon, 01 Aug 2011 10:20:36 -0000

A closure is to objects what functions are to classes.

Re: Use Webkit and Imagemagick to Create Cross-browser Buttons and Other Swag

troelskn — Thu, 06 Jan 2011 10:28:41 -0000

There was a typo in the final css example, that I have fixed now. Does this help?

Re: Use Webkit and Imagemagick to Create Cross-browser Buttons and Other Swag

troelskn — Thu, 06 Jan 2011 05:28:41 -0000

There was a typo in the final css example, that I have fixed now. Does this help?

Re: Use Webkit and Imagemagick to Create Cross-browser Buttons and Other Swag

troelskn — Mon, 03 Jan 2011 21:31:35 -0000

Hadn't seen CSS3 PIE - Thanks for that. I'd say that the approach is a bit different, with different pros and cons. By rendering your buttons as sprites, not only do you ensure that it works in all browsers (not just IE is weird, you know), but in my experience behaviors has an unfortunate tendency to crash IE.

Re: Use Webkit and Imagemagick to Create Cross-browser Buttons and Other Swag

troelskn — Mon, 03 Jan 2011 16:31:35 -0000

Re: Freepik: The Search Engine for Free Photos and Vectors

troelskn — Wed, 03 Nov 2010 14:49:44 -0000

In case you wonder why OpenDNS blocks your access to this site, "pik" is vulgar slang for the male genitalia in Danish.

Re: Freepik: The Search Engine for Free Photos and Vectors

troelskn — Wed, 03 Nov 2010 10:49:44 -0000

In case you wonder why OpenDNS blocks your access to this site, "pik" is vulgar slang for the male genitalia in Danish.

Re: How to Override PHP Configuration Options

troelskn — Thu, 04 Mar 2010 10:52:38 -0000

You should note php_admin_value and php_admin_flag, which acts like php_value and php_flag, except that they can't be overridden later on. If an ini setting is set with these in the main Apache config file, it can lead to some head-scratching.

Re: How to Override PHP Configuration Options

troelskn — Thu, 04 Mar 2010 05:52:38 -0000

Re: Introducing pearhub

troelskn — Sun, 10 Jan 2010 23:59:11 -0000

Thanks for the positive responses.

As for mecurial support, you can go vote for it (Click the feedback tab on the site's left side). If you can tell me how I can list the tags of a remote hg repository, I don't think there's much work in adding it?

Re: Introducing pearhub

troelskn — Sun, 10 Jan 2010 18:59:11 -0000

Thanks for the positive responses.

Re: Pake: PHP project build system

troelskn — Tue, 04 Aug 2009 17:24:46 -0000

Thanks Duane. I was not aware of that effort.

Re: Pake: PHP project build system

troelskn — Tue, 04 Aug 2009 13:01:03 -0000

Good to see someone picking Pake up. I have been thinking about doing the same thing. One problem with Pake is that it got absorbed into Symfony, which means that it never grew any further. In part, I think that is intentional from Fabien, since it is one of the things that makes Symfony stand out amongst other frameworks. It's a pity though; PHP could do well with a standard tool for this, rather than something that is tied to each individual framework.

Re: Installing PHP 5.3 On Ubuntu

troelskn — Sun, 19 Jul 2009 00:28:03 -0000

Thanks - I fought with this for half a day, before I found your post. Very helpful.

If you want to use your old (package managed) ini files, you can use the following options:

--with-config-file-path=/etc/php5/apache2 --with-config-file-scan-dir=/etc/php5/apache2/conf.d

Re: Fun with none

troelskn — Thu, 16 Jul 2009 08:06:58 -0000

@rohit: Use var_dump. Like this: http://gist.github.com/148380
When you echo, the value gets coerced to a string.

Re: Fun with none

troelskn — Thu, 16 Jul 2009 07:14:51 -0000

You also have the php table wrong. It should be:

FALSE, TRUE, TRUE, TRUE ,FALSE

Re: A Note on Google’s So-called Best Practices

troelskn — Fri, 26 Jun 2009 15:53:36 -0000

The poor author of that article has been slammed so unreasonably by blogs like sitepoints. In fact, I find most of the bloggers look more stupid than the author of the article.
It irritates me to see how much this guy’s being bashed unnecessarily.

When someone writes on behalf of Google, he must be prepared to be scrutinised more thoroughly. I have no personal beef with the author (in fact, I don't even know who he is), and I didn't try to make this any kind of attack on his person. I don't see how it could be interpreted as such either. The problem is that this is an educative programme, and people are going to take information from Google as being true. Therefore they must meet higher standards than most everybody else.

It seems that the biggest ‘controversy’ is around the following points, which I’ll clarify on behalf of the author of that article (someone has to) ...

My biggest problem with this article is not about the individual tips being true or not (Though they are in fact wrong), but rather that focusing on micro-optimisations sends the wrong signal to would-be programmers. The choice between using a switch or an if-statement should not be made on the grounds of performance. That is worst-practise, not best.

Re: A Note on Google’s So-called Best Practices

troelskn — Fri, 26 Jun 2009 11:53:36 -0000

The poor author of that article has been slammed so unreasonably by blogs like sitepoints. In fact, I find most of the bloggers look more stupid than the author of the article.
It irritates me to see how much this guy’s being bashed unnecessarily.

It seems that the biggest ‘controversy’ is around the following points, which I’ll clarify on behalf of the author of that article (someone has to) ...

Re: A Note on Google’s So-called Best Practices

troelskn — Fri, 26 Jun 2009 08:54:51 -0000

The refute talks about a double-quoted string versus concatenation of several single-quoted strings. Google’s point talkes about single-quoted strings in both cases. However, this point is moot if using an op-code cache (doesn’t everybody?) as an invariant double quoted string results in the same representation as a single-quoted string.

I'd say it's moot in any case. Unless you have a very atypical application, the performance that can be gained by replacing double quotes with single quotes is a drop in the ocean (And have you seen the ocean? It's really big, I tell you). Even if it doesn't make your code less readable, it's still time you've spent on nothing.

Recently, I've been trying to use the different quoting styles to denote the intention of a string. If it's a string constant (Such as a named index in an array), I'll use single quotes, if it's literal text, I'll use double quotes.

It might make sense to concatenate the queries into a single string and then execute, but isn’t that what prepared statements are for? If performance is that big of an issue, just make sure your target environment has a DB with mysqli or PDO or something.

MySql generally doesn't allow you to execute multiple queries in one call and that's probably a good thing (From a security perspective). However, multiple select queries can often be rewritten to a join.

Prepared statements doesn't save you from making additional calls to the database, but they do save the database server from re-parsing the query, and they also make the actual data transfer slightly smaller. Since a database is usually on a different machine, this means that even with prepared queries, a database call is still a very expensive operation and as such, you should generally try to minimise them.

Re: A Note on Google’s So-called Best Practices

troelskn — Fri, 26 Jun 2009 04:54:51 -0000

The refute talks about a double-quoted string versus concatenation of several single-quoted strings. Google’s point talkes about single-quoted strings in both cases. However, this point is moot if using an op-code cache (doesn’t everybody?) as an invariant double quoted string results in the same representation as a single-quoted string.

It might make sense to concatenate the queries into a single string and then execute, but isn’t that what prepared statements are for? If performance is that big of an issue, just make sure your target environment has a DB with mysqli or PDO or something.

Re: Introducing Bucket: A Minimal Dependency Injection Container for PHP

troelskn — Tue, 12 May 2009 09:05:33 -0000

Honestly, I didn't take any offence from the first comment by Joshua. The web is full of libraries and frameworks and so it's hard to be an expert in all of them before making a choice. I might have been too quick to write off sfServiceContainer; I'll definitely take a second look.

If there’s something that’s a "real" product, under active development that people can use, it’d be worth mentioning in the tutorial itself - that way people won’t be stuck with Bucket

I think it's feature complete - There's nothing more to add to it. That doesn't mean that you're stuck in any way, since you can add whatever complicated factory you want on the backend. In the slightly larger perspective, DI-containers have the very fortunate attribute to them that they are easy to replace. By definition, the application level code has no knowledge about the container, so the only coupling there is, is in the configuration.

Re: Introducing Bucket: A Minimal Dependency Injection Container for PHP

troelskn — Tue, 12 May 2009 05:05:33 -0000

If there’s something that’s a "real" product, under active development that people can use, it’d be worth mentioning in the tutorial itself - that way people won’t be stuck with Bucket

Re: Introducing Bucket: A Minimal Dependency Injection Container for PHP

troelskn — Mon, 11 May 2009 00:00:03 -0000

@Joshua
I admit I only looked at the documentation for it. Maybe I should give it another go. The YAML/XML configuration scared me away, as well as the sf prefix on the classes.
Pake also used to be decoupled from Symfony, but is now tightly integrated into it. That makes me a bit suspicious, although it might just be me being paranoid.

Re: Introducing Bucket: A Minimal Dependency Injection Container for PHP

troelskn — Sun, 10 May 2009 20:00:03 -0000

Re: Interactive CLI password prompt in PHP

troelskn — Fri, 01 May 2009 09:54:20 -0000

OK, I couldn't get the ScriptPW trick to work, but I've now updated the snippet above to use the basic password-prompt, if the OS is Windows. This should make the function fully portable.