Online PHP editor | output for 6rT3c

<?php function mac($msg) { $key = "7h3_1337_k3y"; $nonce = "5uc3m01"; $bloc_size = 64; if(strlen($msg)==$bloc_size) { print("cas2"); $mac = $msg; } else if(strlen($msg)>$bloc_size) { print("cas3"); $mac = hash_hmac("sha512",$msg.$nonce,$key,true); } return crypt($mac,'$6$rounds=5000$OhMyG05h!'); } $lemessage="UNMESSAGEASSEZGRANDPOURTOMBERDANSLECASDUCALCULDEHASHMAPETPOUVOIRREJOURSONMACPOURTOMBERDANSLECASCRYPTODIRECT" $mac = mac($lemessage); $valuemac=hash_hmac("sha512",$lemessage.$nonce,$key,true); $mac2=eval('return hex2bin(\$valuemac);'); $b=mac($mac2); if($mac==$b) { print("OK"); } else{ print("KO"); } print($mac); print($b);