Check UTF-8 input in PHP: only letters
This is a simple way to check a UTF-8 string with PHP function preg_match [http://us3.php.net/manual/en/function.preg-match.php] in search for anything that isn't a letter, which includes all UTF-8 letters and not just ASCII. Preg_match performs a regular match on the given input using a pattern. Th…
Vítor Brandão