Should I use MultiSite for a subdomain based wp site?

As stated your use case seems suitable: multiple sites — check shared users — check WP multisite does this. However there aren’t that many details in your question beyond that. It is a guesswork to recommend for or against it for such a complicated site, without knowing requirements thoroughly.

WordPress and SQL – Update and Insert from another table if column value doesn’t exist

Use PHP and the WordPress API. Place the following in copy-options.php and FTP it to wp-content/plugins, then activate it from the main site: <?php /** * Plugin Name: Copy Options * Plugin URI: http://wordpress.stackexchange.com/q/186092/1685 * Description: Copy options from site 2 to site 1. * Version: 0.1 * Author: TheDeadMedic * Author URI: http://wordpress.stackexchange.com/users/1685/thedeadmedic */ … Read more

New wordpress uploads are broken

This line was missing from my .htaccess file, and I recovered it from a backup. I don’t know if WP removed it during an upgrade or some other plugin did it, but replacing it fixed the problem: #uploaded files RewriteRule ^files/(..+) wp-includes/ms-files.php?file=$1 [L] Art Smith

Multisite Demo Data for New Site

I have not came across readymade file for multisite demo data on WordPress. But I had used this plugin in the past. Please check this to generate multisite demo data: https://wordpress.org/plugins/demo-data-creator/

Automatization for automatization

WordPress has no macros like that but it can be done. If the plugin is already installed, you can Network Activate it so it will be available on any blog in the network. As for the page with title, you’ll need to create or source a plugin to do that as it will need to … Read more