php str_split() every n characters with accents

Question

I\'ve this code to split a string every 3 characters, works fine, but accents are messed:

$splitted_array = str_split(\'waderòrò\',3);

but

Answer 1

I was having the same issue today and here is the solution that I am using. It is basicly using regular expressions.

$re = '/\w{3}/u';
$str = 'waderòròцчшщ中华人民共和国';

preg_match_all($re, $str, $matches);

// Print the entire match result
print_r($matches);