You don’t need domain mapping in current versions of WP, it’s built in. You just need to edit the site Settings (under Network Admin, Sites, click on site then Edit). Enter the URL for the site (https://www.example.com or whatever). If you need to, use the Settings tab when editing the site and change all references … Read more
You won’t be able to use the same database. If you do your going to have all sorts of problems. With the biggest problem being you cannot have two different values for the site URL. I would suggest a managed hosting solution such as Pantheon. This will provide you with a development, test, and live … Read more
I use this workaround to get the ID of the owner of the current blog: $thisblog = $current_blog->blog_id; $mail = get_blog_option($thisblog, ‘admin_email’); $user_from_email = get_user_by(’email’, $mail); $user_id = $user_from_email->ID;
It turns out I was barking up the wrong (or at least a slightly different) tree by using wp_insert_attachment. media_sideload_image managed to pull attachments from other blogs on the same multisite install, copy them to the aggregating blog’s uploads directory, and generate thumbnails, while wp_insert_attachment was doing what it was supposed to, which just happened … Read more
Built in! WordPress comes with feature for this: »MU« or Multisite or Network. You can read more about it in Codex. Summed up The most important part is a single line in your wp-config.php file: define( ‘WP_ALLOW_MULTISITE’, true ); Then you have to decide whether you want to use sub domains or sub directories. One … Read more
I’ve been looking for details on why that line is suggested for a multisite install using subdomains as well. I actually question if both of these are relevant for a subdomain install: RewriteRule ^(wp-(content|admin|includes).*) $1 [L] RewriteRule ^(.*\.php)$ $1 [L] In a sub-directory install the rules are setup slightly different to strip the sub-directory name … Read more
add_filter( ‘option_uploads_use_yearmonth_folders’, ‘__return_false’, 100 ); That’s all you need, seriously!
The orderby-parameter should be post_date instead of date. your code would look something like this: $blogs = get_last_updated(‘ ‘, 0, 1); foreach ($blogs AS $blog) { switch_to_blog($blog[“blog_id”]); $args = array( ‘orderby’ => ‘post_date’, ‘order’ => ‘DESC’, ‘numberposts’ => 1, ‘post_type’ => ‘post’, ‘post_status’ => ‘publish’, ‘suppress_filters’ => true ); $lastposts = get_posts( $args ); foreach($lastposts … Read more
Yes. Use $post->guid instead of $post->ID. NB: guid must be in lowercaps for it to work. Detailed explanation here: https://wordpress.stackexchange.com/a/209832/71131 Some additional detail on the purpose of keeping $post->ID as a backup in your third-party service: https://wordpress.stackexchange.com/a/209833/71131
Because it is a wiki, the codex is a notoriously unreliable source of information (but you probably already knew that). However, it is probably true that uninstalling on huge networks will not scale. What I do in one of my plugins is run the plugin’s uninstall routine on all sites, unless wp_is_large_network() is true. On … Read more