is_site_meta_supported(): bool

Determines whether site meta is enabled.


This function checks whether the ‘blogmeta’ database table exists. The result is saved as a setting for the main network, making it essentially a global setting. Subsequent requests will refer to this setting instead of running the query.


bool True if site meta is supported, false otherwise.


File: wp-includes/functions.php.

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function is_site_meta_supported() {

global $wpdb;

if ( ! is_multisite() ) {

return false;


$network_id = get_main_network_id();

$supported = get_network_option( $network_id, "site_meta_supported", false );

if ( false === $supported ) {

$supported = $wpdb->get_var( "SHOW TABLES LIKE "{$wpdb->blogmeta}"" ) ? 1 : 0;

update_network_option( $network_id, "site_meta_supported", $supported );


return (bool) $supported;


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