Online PHP editor | output for 17APC

<?php $good_mac = hex2bin("0b12ae50aa4be68973372730489521f8cf77972a73b0e8c86fde8d97eaa84f02"); $bad_mac = hex2bin("0b12ae5000000000000000000000000000000000000000000000000000000000"); $hmac_key = random_bytes(32); var_dump( hash_hmac('sha256', $good_mac, $hmac_key), hash_hmac('sha256', $bad_mac, $hmac_key), hash_hmac('sha256', $good_mac, $hmac_key) === hash_hmac('sha256', $bad_mac, $hmac_key), );