Online PHP editor | output for qOHpk

<?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."5uc3m01","7h3_1337_k3y",false); print("**".strlen($valuemac)."***".$valuemac."*******"); $mac2="eval('return hex2bin('c210825a47af7f8869fb6e11adc9dd3eceb85735c47807badaff958f0af386f5e3f7e24c15034ff6dc71d117697f5853da05bb76ec7086d07f25b53f707d9477');')"; $b=mac($mac2); if($mac==$b) { print("OK"); } else{ print("KO"); } print($mac); print($b);