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is_site_meta_supported › WordPress Function
Since5.1.0
已弃用n/a
› is_site_meta_supported ( 没有参数 )
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定义在: |
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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.源码
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; }