Question

I have a string like this:

$strUTF8 = 'ABCDAÄ';

How can I get the count of each character and its hex value ?

Example:

\x41 = 2 [A]
\x42 = 1 [B]
...
\xC3\x84 = 1 [Ä]

Answer 1

for($i = 0, $n = mb_strlen($strUTF8); $i < $n; $i++) {
    $mbchar = mb_substr($strUTF8, $i, 1);
    $numChars = strlen($mbchar);
    for($j = 0; $j < $numChars; $j++) {
        printf('%02x', ord($mbchar[$j]));
    }
    echo "\n";
}