Bug 64157
Changed error message to make sense
News for bugfix #64157
EmptyIterator now implements Countable; fixes bug 60577

(cherry picked from commit 6398844c86bee08abe4ee3f206ecd86ad0a498f9)
Fix bug #64441 (FILTER_VALIDATE_URL rejects fully qualified domain names)

(cherry picked from commit c149d4ee4be81ecf005eafd43ede06e70aa4c985)
NEWS for bug #64441
NEWS for #60577