Contra
...
Not searchable through search engines
Contra
...
Not searchable through search engines
(The "true" causes the value to be returned rather than printed, obviously.)
Oh, wait...
On the second thought - if PHP would at last consider converting or storing everyhting as an object ("".length or [].walk()), this would cause a problem. Still, see my first sentence.
As far as language design goes though, I'd rather use a language that's optimized for writing code than for searching for it :).
Considering how widely taught (and self-taught) PHP is, I think that's pretty important, if only from a business perspective―if people don't learn your language, they don't buy your licensed books, and they don't need your technical support because they never built anything with it.