Facebook page automatic “like” URL (for QR Code)

Question

I was wondering if one could construct a URL for automatically liking a Facebook page. Then this URL could be converted to a QR Code so people can automatically \"like\" yo

Answer 1

The answers above seem partly outdated.

The URL builder on https://developers.facebook.com/docs/plugins/like-button/ worked nicely for me.

You can configure, preview and the get the code/URL in different flavors: HTML5, XFBML, IFRAME, URL