So have just checked out Wikipedia and found out all about Hello World.
Turns out it’s not just for PHP… it’s also used to help people learn in all kinds of programming languages. Interesting. Worth a read if you like programming or are curious about phrases.
I’m not going to go into the whole trustworthiness of Wikipedia thing here. It’s enough to say I’m taking this as a starting point.
At least tomorrow when I’m flinging open my curtains in the morning and shouting out “Hello World!” I’ll have more of an idea why I’m so excited.