That page gets linked often by those who usually don't use PHP, but it is horribly outdated. PHP has come a long way since then.

It's kinda sad that the author doesn't bother to at least insert an alert. But I suspect that they enjoy the free traffic from people linking without this knowledge.

It's double sad that in our field we often strive to become more engineering and science like, yet many don't care to spread misinformation.