How to remove diacritics from text?

Question

I am making a swedish website, and swedish letters are å, ä, and ö.

I need to make a string entered by a user to become url-safe with PHP.

Basically, need to

Answer 1

If intl php extension is enabled, you can use Transliterator like this :

protected function removeDiacritics($string)
{
    $transliterator = \Transliterator::create('NFD; [:Nonspacing Mark:] Remove; NFC;');
    return $transliterator->transliterate($string);
}

To remove other special chars (not diacritics only like 'æ')

protected function removeDiacritics($string)
{
    $transliterator = \Transliterator::createFromRules(
        ':: Any-Latin; :: Latin-ASCII; :: NFD; :: [:Nonspacing Mark:] Remove; :: NFC;',
        \Transliterator::FORWARD
    );
    return $transliterator->transliterate($string);
}