Use get_current_site() instead of the $current_site global in wp-admin/admin-header.php and is_main_network().
fixes #25158. Built from https://develop.svn.wordpress.org/trunk@26235 git-svn-id: http://core.svn.wordpress.org/trunk@26142 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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@ -12,7 +12,7 @@ if ( ! defined( 'WP_ADMIN' ) )
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// In case admin-header.php is included in a function.
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global $title, $hook_suffix, $current_screen, $wp_locale, $pagenow, $wp_version,
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$current_site, $update_title, $total_update_count, $parent_file;
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$update_title, $total_update_count, $parent_file;
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// Catch plugins that include admin-header.php before admin.php completes.
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if ( empty( $current_screen ) )
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@ -22,9 +22,9 @@ get_admin_page_title();
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$title = esc_html( strip_tags( $title ) );
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if ( is_network_admin() )
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$admin_title = sprintf( __('Network Admin: %s'), esc_html( $current_site->site_name ) );
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$admin_title = sprintf( __( 'Network Admin: %s' ), esc_html( get_current_site()->site_name ) );
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elseif ( is_user_admin() )
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$admin_title = sprintf( __('Global Dashboard: %s'), esc_html( $current_site->site_name ) );
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$admin_title = sprintf( __( 'Global Dashboard: %s' ), esc_html( get_current_site()->site_name ) );
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else
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$admin_title = get_bloginfo( 'name' );
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@ -3345,12 +3345,12 @@ function is_main_site( $site_id = null ) {
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* @return bool True if $network_id is the main network, or if not running multisite.
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*/
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function is_main_network( $network_id = null ) {
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global $current_site, $wpdb;
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global $wpdb;
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if ( ! is_multisite() )
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return true;
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$current_network_id = (int) $current_site->id;
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$current_network_id = (int) get_current_site()->id;
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if ( ! $network_id )
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$network_id = $current_network_id;
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