The plugins folder is shared. You can install one copy of the plugin and activate it on three blogs and not the others. If you don;t want the others to be aware of the plugin’s existence… you’ll have to use another plugin to exclude it. http://wordpress.org/extend/plugins/restrict-multisite-plugins/ or http://wordpress.org/extend/plugins/exclude-plugins/
During the load process, WP loads wp-settings.php, which calls is_multsite(), which checks for the multisite constant defined in wp-config.php if it is a multisite install. If it is multisite, then ms-settings.php is loaded. Inside ms-settings.php, WordPress parses the requested URI to get the domain, and calls wpmu_current_site() to set all of the current site constants … Read more
The register form have different hooks for custom fields. I hope this source example help you. /** * Add custom field to registration form */ add_action( ‘register_form’, ‘fb_show_first_name_field’ ); add_action( ‘register_post’, ‘fb_check_fields’, 10, 3 ); add_action( ‘user_register’, ‘fb_register_extra_fields’ ); function fb_show_first_name_field() { ?> <p> <label>Twitter<br/> <input id=”twitter” type=”text” tabindex=”30″ size=”25″ value=”<?php echo $_POST[‘twitter’]; ?>” name=”twitter” … Read more
Site admins are stored in a site option as an array of usernames. For example, using SQL in MySQLWorkbench you can do a query such as this: SELECT * FROM wp_sitemeta where meta_key=’site_admins’; To get back a serialised PHP array. Modifying this value by adding your username and user ID will make you a site … Read more
I finally found a way to add more lines to the Sites > Infos table : It’s a little bit ugly, but it works. I simply use the action admin_footer to add a bunch of HTML code at the end of the page, and then use jQuery to move it to the right place. add_action(‘admin_footer’, … Read more
Probably this issue: Multisite subdirectory install breaks if network path has uppercase letters. https://core.trac.wordpress.org/ticket/27866
Use the upload_dir filter. add_filter( ‘upload_dir’, ‘wpse_261931_upload_dir’, 10, 1 ); function wpse_261931_upload_dir( array $uploads ) { if( is_multisite() ) { //* Do something interesting with the $uploads directory } return $uploads; }
From the Network Admin, go to Sites > All Sites. When click to edit a site you’ll be taken to a URL like http://example.com/wp-admin/network/site-info.php?id=1 That number at the end is the site ID.
As you probably already know. Since WordPress 3.0 Multi-Site functionality has been included by default as the WordPress MU project has been merged into the WordPress 3.0 core. In regards to the initial setup, it might take a little bit of work if you are not familiar with php coding but what I can tell … Read more
Since you guys haven’t mentioned it yet then i’ll have to BackWPup a free site and database backup plugin packed with features and easy to configure Database Backup WordPress XML Export Optimize Database Check\Repair Database File Backup Backups in zip,tar,tar.gz,tar.bz2 format Store backup to Folder Store backup to FTP Server Store backup to Amazon S3 … Read more