[gif] Spot the difference
![[gif] Spot the difference](https://cdn.dribbble.com/users/4033/screenshots/863720/media/a983b15335dd294309bd59d123453ca3.gif)
The online version of the newsletter detects if it is being viewed by an existing mailing list subscriber and replaces the "subscribe" link with a factually accurate statement.
The cost is a single line of PHP.
The online version of the newsletter detects if it is being viewed by an existing mailing list subscriber and replaces the "subscribe" link with a factually accurate statement.
The cost is a single line of PHP.