"; // Encrypt $string $encrypted_string = mcrypt_encrypt($etype, $secret_key, $string, MCRYPT_MODE_CBC, $iv); // Convert to hexadecimal and send to browser PRINT "Encrypted string: ".BIN2HEX($encrypted_string)."

"; $decrypted_string = mcrypt_decrypt($etype, $secret_key, $encrypted_string, MCRYPT_MODE_CBC, $iv); PRINT "Decrypted string is: $decrypted_string"; ?>