That’s pretty much how to do it, although you can’t use spaces in option IDs.
Metaboxes uses a different API: https://devs.redux.io/core-extensions/metaboxes.html
I’m getting a warning
Warning: Trying to access array offset on value of type null in /var/www/html/wp-content/plugins/weather/includes/weather-config.php on line 347
I have no way of knowing how you are using Redux based on one error message. You would need to post your entire options-config.php and the block (not just the line) of code that’s not working. Chances are, something is being done incorrectly.
this line is giving me the warning echo $redux_demo['the option id'];
do I need to add an if statement?
Again, without seeing your entire Redux config and the BLOCK of code that is giving you the error, I have no way of knowing what is happening. Historically, it’s because devs are doing something incorrectly (and as I indicated previously, you CANNOT use option IDs that contain spaces. It won’t work).
I suggest you load the Redux sample config (Settings > Redux > Enable Panel Demo) and begin your work there. I suggest this because I know the demo panel works. PLEASE, change the opt_name, and the page_slug arguments since using the defaults will lead to problems after you release your project.
I would also suggest thoroughly reviewing the docs site: https://devs.redux.io/ and start with the Guides section. Also, to use Redux (and write themes/plugins), you need, at a minimum, a moderate level of PHP knowledge.
Good luck.
