I share your confusion over that assertion. I actually miss Perl's excellent block scope capabilities when working in almost every other similar language. I imagine most other languages have gotten it, by now, but a few years ago when I was using Python for a few years for a client it didn't have block scope and I missed it. A brief googling actually hints that maybe Python still doesn't have block scope, which is pretty weird, so I assume I'm googling wrong.
But, perhaps discussion of scope problems in Perl is just when talking about very old code. Perl had some scope atrocities back in Perl 4 and some weirdness in early Perl 5 days. But, for the past 15 years or so, it's been very predictable and has improved (like the syntactic sugar of "my" declarations in foreach or while expressions).
But, perhaps discussion of scope problems in Perl is just when talking about very old code. Perl had some scope atrocities back in Perl 4 and some weirdness in early Perl 5 days. But, for the past 15 years or so, it's been very predictable and has improved (like the syntactic sugar of "my" declarations in foreach or while expressions).