Best way to learn php?

[Bryan Ex]

That's good... but not quite what I'm asking I think. With HTML I started with the very basics and added on. I learned how to bold, font, and change colour. Later I added tables, links, and images, etc. It seems with php I'm not following that process. I'm learning little clips of how to do stuff, none of which seem to connect together. I might want to list something in a different order in a mod so I find the query and edit it a bit. No big deal and far from adding a feature. How do I best go from these small edits to understanding enough to actually edit code? Do I start with echo Hello World and build on that?