I agree with the comment above by Dan Scott.

Without proper licensing of your code, your code is unusable in many serious projects:

1. The lawyers of a company, will pretty strongly insist that any code used have a proper license.

2. Public domain, for the most part, is unacceptable to companies. There is no legally binding way for most people to place code into the public domain. (This is a ‘bug’ with public domain that Congress has not yet fixed).

3. I also agree, with Dan Scott, you should license your code under a variety of license. This allows another project to incorporate your code with a license that matches their license.

4. To explain furthur, as to why you want to license you code under multiple licenses: if a project is licensed under the MIT license, it prefers not to include code with a Apache License V2.0. Otherwise, by the time the project is using 10+ pieces of code, it is up to 5+ license, and it becomes a very messy license … which detracts from the overall project. Therefore, many projects, will avoid different licenses.

5. Finally, yes, this whole licensing is a complete pain! It is *so* much nicer to just say “This code is unrestricted: you are free to use it however you like.” Unfortunatly, as hopefully this explains, this is not practical in our society, and you need to properly license your code, to make the greatest amount of people (mostly corporations) comfortable with using your code.

I see you gave me credit on your website and in the code – I can’t ask for any more than that.

I appreciate the work you’re putting in to assembling the PHP equivalents, but boy… having used PHP for the last 12 months I really need to get off my arse and write an “I hate PHP” rant… The language really sucks, and I don’t have much hope PHP 6 will make things better…

That’s an awesome function. Though it’s now license free I would still like to tell you that I’m including it in my php to javascript project. And so if you’re not okay with that or would like to be credited differently please drop a line here:
http://kevin.vanzonneveld.net/techblog/article/javascript_equivalent_for_phps_sprintf/

Thanks!