You're refetching Auth::user in the second call and as such your changes in the first line go away.

$user = Auth::user()->expires_at = strtotime("+". $packDuration." months",time());
$user->save();

or just plain:

Auth::user()->expires_at = strtotime("+". $packDuration." months",time())->save();

Hi thank you for your reply, but i dont tkink this can work !

In the both examples you are calling the save method from the strtotime function not from the model, i tried and "call to a member function save() on a non-object"

In my first example i show you "expires_at" but its not the only things i save !

$packDuration = Pack::find($buy_info['pack_id'])->duration;
Auth::user()->pack_id = $buy_info["pack_id"];
Auth::user()->expires_at = strtotime("+". $packDuration." months",time());
Auth::user()->save();

My user pack_id is well saved in DB and session. :/

My expires_at is fillable in my model.

Thank you very much.

Timestamps and dates has always been my nightmare. I don't get why i have to put a date in a timestamp column but ok.

Thank you again you saved my day. =)