According to Chris Hajer (Gravity Forms Support Engineer) your best bet is to try using gform_get_form_filter
And it does exactly what it sounds like, it controls the HTML output of any Gravity Form.
Combined with the right PHP command – you will be able to use this filter to instruct any Gravity Form on your site to either ‘display’ or ‘be hidden’ on any particular day of the month…
…question is, what would be the most appropriate PHP command to use?
Any suggestions?
Let me kick off for you –
How about the strtotime function?
Now, we’d love to hear from you!
(Recommended by Gravity Forms Support Engineer: Chris Hajer)