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phputf-8double-byte

Convert (doublebyte) string to Hex

Let's say I have the word "Russian" written in Cyrillic. This is would be the quivalent of the following in Hex:

Русский

My question is: how do I write a function which will go from "Russian" in Cyrillic to it's hex value as above? Could this same function work also for singel byte characters?

Solution

  • The 〹 thingies are called HTML Entities. In PHP there is a function that can create these: mb_encode_numericentityDocs, it's part of the Multibyte String extension (Demo):

    $cyrillic = 'русский';

$encoding = 'UTF-8';
$convmap = array(0, 0xffff, 0, 0xffff);
$encoded = mb_encode_numericentity($cyrillic, $convmap, $encoding);

echo $encoded; # русский

    However: You need to know the encoding of your Cyrillic string. In this case I've chosen UTF-8, depending on it you need to modify the $encoding parameter of the function and the $convmap array.