Bitcoin Forum

does anyone know what blockchain, satoshidice, bitcoin minesweeper, etc are built with?

I don't know what other services are using, but I personally recommend Django (https://www.djangoproject.com/).

blockchain.info uses Coyote (http://en.wikipedia.org/wiki/Apache_Tomcat#Coyote), so it's probably also using Tomcat, therefore is probably using Java.  Like so many other sites, it uses Twitter's Bootstrap (http://twitter.github.com/bootstrap/) and jQuery on the frontend.

SatoshiDice is clearly PHP.

Bitcoin MineField is served by Express (http://expressjs.com/), therefore is built on top of Node, which is Javascript.  The frontend uses jQuery and jQuery UI.

Thanks!

i stick with pure php

i would like to use php as well for an experimental project, just to keep it simple

are there any frameworks/guidelines to building a bitcoin friendly site in php?

the successful bitcoin sites i've seen usually have these attributes:

* they accept bitcoins by given each unique user a unique wallet to send money to
* they allow for anonymous, tokenized access

You will probably want to use this http://jsonrpcphp.org/ and unqiue address for every transaction is the standard, when you want to start figuring out who send the transfer that is when things get difficult.

Out of these, I like Express a lot. Never tried Coyote, and I don't like PHP.

If you're manly enough Rails is the best choice.

how about Java and this here? --> http://code.google.com/p/json-simple/ (http://code.google.com/p/json-simple/)

Of the choices there is basically no existing open-source bitcoin infrastructure for web apps, except perhaps a few scattered things in Python (pynode, for example). You're going to be doing a lot of stuff from scratch using JSON-RPC--which is available everywhere--so it matters far more how good your selection of language and framework is at doing general web stuff. Ruby (on Rails) and Python (with Django) are both excellent choices, and easy to get hosted on a professional environment like Herkoku.

I wrote some basic stuff in Java, like Currency, CurrencyPair, Order, Trade etc. Depends on what you want build.

If using Ruby, the popular Sinatra (http://www.sinatrarb.com/intro) framework is lightweight and has a rather gentler learning curve than Rails.