PHP is a powerful and most popular web development language. If you are looking to learn web development, learn html, learn css and finally PHP.

Here is the list of PHP topics from Programmingbulls.com. The goal of these tutorial topics is to teach you the basics of PHP so that you can:

* Begin to understand PHP and work on your own PHP projects.

Hashes are lookup tables and also similar to arrays. They are generalization of arrays. Arrays only permit integer indices, example: array[3], but hashes allow any object to be used as "index". So, hash["name"] is allowed. In Ruby, convert arrays to hashes as shown in the link.