How remove accents with PHP 7.4+

Sometimes we need to remove some characters from strings to use they like slugs or for other usages, so two of the possible solutions are Transliterator

$string = 'Ãéïòû';
$transliterator = Transliterator::createFromRules(':: Any-Latin; :: Latin-ASCII; :: NFD; :: [:Nonspacing Mark:] Remove; :: NFC;', Transliterator::FORWARD);
echo $normalized = $transliterator->transliterate($string);

it will output: Aeiou

another options is use Normalizer

$string = 'Ãéïòû';
$normalized = Normalizer::normalize($string, Normalizer::NFD);
echo preg_replace('/[\x{0300}-\x{036F}]/u', '', $normalized);

it will output: Aeiou

I hope it helps.