So here's the deal: We're 000webhost moderators, and we are looking for solutions to deny users from installing unsupported cache plugins (Just because some cache plugins are not compatible with the hosting, and cause HTTP error 500).
So, we thought of creating a plugin that runs when the WordPress plugin installer runs. Then if the plugin's name is in our blacklisted list, tell the user they can't install it.
The main question is how to let the plugin run on installation of other plugins. Examples would be great, too.
Thank you in advance!
Christopher, from 000webhost