That doesn't make PHP unique. AWK already did that. By extension, a pitfall of interview questions: you can't always assume you actually know the correct answe

That doesn't make PHP unique. AWK already did that. By extension, a pitfall of interview questions: you can't always assume you actually know the correct answer or even that there is a correct answer. Which may cause interviewees to start secondguessing themselves and make them appear worse than they are. You can basically send them into an infinite loop by an illformed question. "Does he mean that they aren't actually arrays? Well, he can't mean that, because there are other languages whose arrays are actually hash tables. And they aren't called 'associative arrays' for nothing. So what does he mean?"