I found this stray code in the header.php $GLOBALS[blog_id] = get_option(‘woo_blog_id’); This wiped out the global variable that get_current_blog_id() relies on to get the site id in multisite. This is then used by wp_get_attachment_url() to build the appropriate URL. Because I was getting an incorrect site id, my attachment URLs were coming out wrong.
You can try this instead of get_last_updated(): global $wpdb; $blogs = $wpdb->get_results(“SELECT blog_id, domain, path FROM {$wpdb->blogs} ORDER BY last_updated DESC” , ARRAY_A ); print_r($blogs); just to see if it changes anything to skip the public, archived, mature, spam , site_id and deleted filters.
You need the wp_network_dashboard_setup action instead of wp_dashboard_setup
Multiple installs can share a single database, as long as each install has a unique table prefix defined in wp-config.php before going through the install process: /** * WordPress Database Table prefix. * * You can have multiple installations in one database if you give each a unique * prefix. Only numbers, letters, and underscores … Read more
Instead of get_option, use home_url which will determine … the appropriate protocol, “https” if is_ssl() and “http” otherwise. If the $scheme argument is “http” or “https” the is_ssl() check is overridden. In fact, network_home_url would be more appropriate since you are talking about Multisite. Those should return the same value that you are trying the … Read more
It appears your sites are not under the same network, and you have network 1 and network 3. Normally this would never happen on an average multisite unless plugins are installed that can change this. Yes 1 WordPress multisite instance can run multiple networks of blogs, you have accidentally stumbled onto this feature, wordpress.com being … Read more
You could hook intop pre_comment_on_post: add_action( ‘pre_comment_on_post’, function(){ if ( empty ( $_SERVER[‘HTTP_REFERER’] ) ) exit; }); But … be aware, not all requests without an referer are actually spam posts. Some firewalls and proxies strip this field. And most automated spam comes with a Referer field filled with the name of the spammed domain. … Read more
If you have a network, you don’t need multiple installs. I would just start researching networks more via the codex. http://codex.wordpress.org/Create_A_Network
To remove the Add Users capability from Administrators (but leave it intact for Super Administrators), you can do this: <?php $role = get_role( ‘administrator’ ); if ( $role->capabilities[‘add_user’] == 1 && ! is_main_site( get_current_blog_id() ) ) { // Because this is saved to the database, we check first // to see if it’s already been … Read more
The signup page has validation hooks. How about something like this? add_filter(‘wpmu_validate_blog_signup’,’set_blog_creation_limit’); function set_blog_creation_limit($result) { $blogs = get_blogs_of_user($result[‘user’]->ID); if (count($blogs) > 2 ) $result[‘errors’]->add(‘blogname’, __(‘You have already registered the maximum amount of blogs!’)); return $result; }