PHP - how to solve encoding problem?

Question

PHP

Hi, I'm editing the file in notpad in UTF-8 encoding without BOM
PHP code

var_dump(mb_detect_encoding( '/data-alt-lite/'));
var_dump(mb_detect_encoding(iconv('cp1251', 'UTF-8', '/data-alt-lite/')));

outputs this

string 'ASCII' (length=5)
string 'ASCII' (length=5)

Why and how to convert it to UTF-8?

Answer 1

var_dump(mb_detect_encoding( '/data-alt-lite/','UTF-8'));
var_dump(mb_detect_encoding(iconv('cp1251', 'UTF-8', '/data-alt-lite/'),'UTF-8'));

var_dump(mb_detect_encoding( 'Русские буквы'));

Text consisting only of characters less than 128 is converted to plain ASCII text when written in UTF-8. Conversely, in UTF-8 text, any byte with a value less than 128 represents an ASCII character with the same code.