Crypting PHP Question

[RobinVossen]

Well, I have to Encrypt something using PHP.
I also must be able to Decrypt it when I know the key.
What function to use?
I have been looking on the PHP-Function-List. But I only found mcrypt. But I cant figure out how that works..
So, how can I make a good Encryption in PHP that is able to Decrypt.

Cheers,
Robin

[Franklin52]

Hi Robin,

After a Google on "howto encrypt php" I found this:

Encryption and Decryption using PHP and GnuPG

I'm not familiar with it but maybe it could be something for you.

Regards

[RobinVossen]

I have been Googling aswell.
But that is (for how far I understand that) Encrypting your PHP script.
But I just want to Fiddle around with Variables. (Like Base64 but then with a Secret Key).
I know there are lots of Encryption ways.
But I forgot all the names :o SO I cant google on them... (Well I remember Hash types but thats kinda useless if you want to be able to decrypt it aswell..)