I have the newest version of PHP Tools for VS Code installed (1.0.4394). Unfortunately when I start typing names of variables with $ auto-complete still adds a 2nd $ so I still get $$name.
This seems to happen to some users, and we are still investigating why. Just to ensure, do you have the latest VS Code version?
It's very interesting: since this morning it works fine!
The version number of the extension hasn't changed. It's still 1.0.4394.