PHP: How can I generate a HmacSHA256 signature of a string

Question

Is there any way to create a HmacSHA256 signature of a string in php?

Answer 1

I can't answer due to lack of reputation, but @Melomans way in combination with ZPiDER's answer leads to using only

$hash       = hash_hmac('sha256', $string, $secret);

for a correct Datatrans signing