= '5.1.2' ) { $fingerprint = hash_hmac("md5", $login . "^" . $sequence . "^" . $timestamp . "^" . $amount . "^", $key); } else { $fingerprint = bin2hex(mhash(MHASH_MD5, $login . "^" . $sequence . "^" . $timestamp . "^" . $amount . "^", $key)); } ?> Please choose an amount:

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