is_multisite() WP 1.0
If Multisite is enabled.
Basis of: is_main_site()
1 time = 0.000009s = speed of light | 50000 times = 0.01s = speed of light | PHP 7.0.8, WP 4.6.1
No Hooks.
Return
true/false. True if Multisite is enabled, false otherwise.
Usage
is_multisite();
Changelog
| Since 3.0.0 | Introduced. |
Code of is_multisite() is multisite WP 5.6
function is_multisite() {
if ( defined( 'MULTISITE' ) ) {
return MULTISITE;
}
if ( defined( 'SUBDOMAIN_INSTALL' ) || defined( 'VHOST' ) || defined( 'SUNRISE' ) ) {
return true;
}
return false;
}Related Functions
From tag: Conditional tags (all)
- cat_is_ancestor_of()
- comments_open()
- email_exists()
- has_category()
- has_custom_header()
- has_excerpt()
- has_nav_menu()
- has_post_thumbnail()
- has_shortcode()
- has_tag()
- has_term()
- have_comments()
- have_posts()
- in_category()
- in_the_loop()
- is_404()
- is_active_sidebar()
- is_admin()
- is_admin_bar_showing()
- is_archive()
- is_attachment()
- is_author()
- is_blog_admin()
- is_blog_installed()
- is_category()
- is_child_theme()
- is_comment_feed()
- is_customize_preview()
- is_date()
- is_day()
- is_dynamic_sidebar()
- is_embed()
- is_feed()
- is_front_page()
- is_header_video_active()
- is_home()
- is_local_attachment()
- is_main_query()
- is_month()
- is_multi_author()
- is_nav_menu()
- is_network_admin()
- is_new_day()
- is_page()
- is_page_template()
- is_paged()
- is_plugin_active()
- is_post_type_archive()
- is_post_type_hierarchical()
- is_preview()
- is_robots()
- is_search()
- is_single()
- is_singular()
- is_ssl()
- is_sticky()
- is_tag()
- is_tax()
- is_taxonomy_hierarchical()
- is_textdomain_loaded()
- is_time()
- is_trackback()
- is_user_admin()
- is_user_logged_in()
- is_year()
- pings_open()
- post_exists()
- post_password_required()
- shortcode_exists()
- taxonomy_exists()
- term_exists()
- term_is_ancestor_of()
- wp_attachment_is()
- wp_attachment_is_image()
- wp_doing_ajax()
- wp_doing_cron()
- wp_is_mobile()
- wp_is_post_autosave()
- wp_is_post_revision()
- wp_script_is()