All descriptions you need in unicode-tools.php file.
** Functions List
- substr_unicode()
- str_shuffle_unicode()
- chunk_split_unicode()
- lcfirst_unicode()
- ucfirst_unicode()
- lcwords_unicode()
- ucwords_unicode()
- ucfirst_turkish()
- lcfirst_turkish()
- ucfirst_turkish_v2()
- lcfirst_turkish_v2()
- ucwords_turkish()
- lcwords_turkish()
- str_split_unicode()
- count_chars_unicode()
- str_pad_unicode()
- strtr_unicode()
- str_word_count_unicode()
- substr_count_unicode()