Dynamically populate Cascading Dropdown from MySQL using JQuery/AJAX [closed]

You might want to take a look at CRED plugin and see if it gets you anywhere near what you need. I’ve worked with it back when it was three different plugins (Types, Views and Access).

For as much as I can remember they used to keep a testing environment where you could take plugins for a spin in a clean site on their server before you bought it, you should ask them about that.

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