Internationalizing your plugin is not difficult. All the information you need is out there and the WordPress Codex is very good resource, but I thought I’d sum it up for those who need the quick skinny on the matter.
If you are interested, like I am, in setting up your own web server and hosting your own projects then I hope you will follow along. This guide will walk you step by step on setting up a LEMP stack (Linux, Nginx, MySQL, and PHP).
This WordPress helper will let you create Meta Boxes fast with the flexibility you need as a developer. Full documentation walks you step-by-step. Create custom WordPress Meta Box UI elements for your projects with ease.
This is the .htaccess file that I use for my CodeIgniter PHP projects (some of these .htaccess rules can be used for any project, keep reading). CodeIgniter uses mod_rewrite to route all requests to the CI front controller. I’ve made some additions in an attempt to canocalize some of the CodeIgniter URL end points. The key benefit of a canocalized URL is that your search engine page ranking (page juice) is not spread across several pages, but instead, targeted to a single page.
The general idea is to read a Google Spreadsheet through PHP and save user submitted form data via the Google Documents List Data API. By doing this, you can quickly view all the submissions at a glance and you are also able to export CSV files of the data. Using Google Docs gives you and your clients a quick and easy interface to interact with form data.