The ctype flag is disabled by default in the dev-lang/php package, although the official documentation says it's enabled by default: http://de3.php.net/ctype This often leads to incompatibilities with software that uses these functions and usually to confusion, since the software that makes use of this is usually employed by users that are not at admin level.
USE=ctype emerge php
let me highlight the important part: This often leads [...] to confusion, since the software that makes use of this is usually employed by __users that are not at admin level__. or in other words: this causes problems for people who do not have the power to do USE=ctype emerge php
Reopening, since it apparently wasn't looked at since my last reply.
(In reply to comment #3) > Reopening, since it apparently wasn't looked at since my last reply. Yes, I did. It's administrators responsibility to compile php as needed. Not a bug.