Re: Replacing a character in a string

[chibiryuu]

Even if you didn't know about ucfirst, it's easy enough to do with quoting:

"\u$_"

Or with a regex, if you didn't know about that either, but that's weird.

s/(.)/uc$1/e

[ikegami]

or with substr

substr($s, 0, 1, uc(substr($s, 0, 1)));

or

substr($s, 0, 1) = uc(substr($s, 0, 1));

[Tanktalus]

As long as we're getting silly ...

  $s &= ~' ';

(Warning: may not work for non-7-bit-ASCII letters such as accented characters, Cyrillic characters, or anything in EBCDIC. Or even any characters that aren't actually letters. But it is fun to do.)

[chibiryuu]

Cute :)