[Solved] How to add an achievement over query?

[Gangstersheep]

Hello!

I have scripted a Twitch connection script. With this script users can verify their forums account with their Twitch account. This is already working, but i want to give them a custom created achievement. And here is the problem: I dont know how to give it to them. I don't understand how it is entered into the database cause it's this schema:

a:3:{s:4:"acid";
i:7;s:4:"name";
s:19:"Twitch connection";
s:6:"reason";s:0:"";
}}}i:1;
a:0:{}}

Is it possible to make it easier?
I dont know what kind of language it is.

Thanks in advance!