How to pass encrypted URL parameter and decrypt them?

Hello all,
is there a way to pass an encrypted URL parameter to another page.
And then decrypt it on the destination page?
I can't find a right way to do this.
Something that allow me to display the URL this way: http://www.mywebsite.php/destination_page.php?up1=hr34ghr3uy4rgu3gu4rg3urgu3yg4ruyg34&up2=iu134yiu3y45iou3y45iu3y24oui5y23ui54y3iu.
So that the user can see the URL parameter but can't discover what it is.
TIA
tony

How strong of encryption do you want? The easiest way is to use something like base64_encode() and base64_decode(). That will make it look obscure, but that isn't very secure if you are genuinely worried about hackers. The more secure route would be to use something like openssl_encrypt: https://www.php.net/manual/en/function.openssl-encrypt.php, which has a variety of encryption types that include keyed encryption that would not be easily decoded without the key.

Thanks Ray,
I just want to hide some data. I don't need strong protection.
Thanks.
Tony

Just use base64_encode() and base64_decode() then.