17 in php with strlen, which is defined as counting bytes. 1 when you use grapheme_strlen. mb_strlen and iconv_strlen return 5, and 5 is rather useless as the a

17 in php with strlen, which is defined as counting bytes. 1 when you use grapheme_strlen. mb_strlen and iconv_strlen return 5, and 5 is rather useless as the article says.