update_site_option

Source code

function update_site_option( $option, $value ) {

	global $wpdb;



	$oldvalue = get_site_option( $option );

	$value = apply_filters( 'pre_update_site_option_' . $option, $value, $oldvalue );



	if ( $value === $oldvalue )

		return false;



	if ( false === $oldvalue )

		return add_site_option( $option, $value );



	if ( !is_multisite() ) {

		$result = update_option( $option, $value );

	} else {

		$value = sanitize_option( $option, $value );

		$cache_key = "{$wpdb->siteid}:$option";

		wp_cache_set( $cache_key, $value, 'site-options' );



		$_value = $value;

		$value = maybe_serialize( $value );

		$result = $wpdb->update( $wpdb->sitemeta, array( 'meta_value' => $value ), array( 'site_id' => $wpdb->siteid, 'meta_key' => $option ) );

		$value = $_value;

	}