Encryption output

Hello guys!

I have problem with CI4 encryption and decryption...

The problem is from encryption method it is show strange output.
Sample Output:

http://prnt.sc/u2vmwi


My Setting in .env:

PHP Code:

encryption.key = 'thisismykey' 
encryption.driver = OpenSSL 


My code:

PHP Code:

$encrypter = \Config\Services::encrypter();
$plainText = 'This is a plain-text message!';
$ciphertext = $encrypter->encrypt($plainText);
echo $ciphertext; 


I hope someone can help me about the output from encryption.

Btw, CodeIgniter framework is awesome!

This is me. JK not me.