"PHP is an example of a scripted language. The computer or browser reads the program like a script,..."
Hard to remember the last time my browser was reading a server-side script. ( or was it just "all those beers" they were drinking? )
After all, the server is a computer, so you can replace 'computer' with server. Which makes the first evaluation true, and the word 'browser' is never evaluated, or at least irrelevant. You could even say that either the server or my pet ferret reads the program like a script...
But seriously... the guy/girl was talking generically about scripting, not specific to server-side web scripts. So the statement is accurate.
Since the discussion before this line was about PHP, I think it tends to trip you up.