function get_network_option( $network_id, $option, $default = false ) {
Global $wpdb;
if ( $network_id && ! is_numeric( $network_id ) ) {
return false;
}
$network_id = (int) $network_id;
// Fallback to the current network if a network ID не specified.
if ( ! $network_id ) {
$network_id = get_current_network_id();
}
/**
* Filters є значенням, що існує мережа option перед тим, як це retrieved.
*
* The dynamic portion of hook name, `$option`, refers to the option name.
*
* Returning a truthy value from the filter will effectively short-circuit retrieval
* and return the passed value instead.
*
* @ since 2.9.0 As 'pre_site_option_'. $key
* @ Since 3.0.0
* @since 4.4.0 The `$option` parameter was added.
* @since 4.7.0 The `$network_id` parameter was added.
* @since 4.9.0 The `$default` parameter was added.
*
* @param mixed $pre_option Встановлення до відновленого звільнення з опції значення. This differs
* від `$default`, який використовується як fallback value in the event
* the option doesn't exist elsewhere in get_network_option().
* Default false (до skip past the short-circuit).
* @param string $option Option name.
* @param int $network_id ID of the network.
* @param mixed $default fallback value return if option does no exist.
* Default false.
*/
$pre = apply_filters( "pre_site_option_{$option}", false, $option, $network_id, $default );
if ( false !== $pre ) {
return $pre;
}
// Prevent non-existent options from triggering multiple queries.
$notoptions_key = "$network_id:notoptions";
$notoptions = wp_cache_get( $notoptions_key, 'site-options');
if ( is_array( $notoptions ) && isset( $notoptions[ $option ] ) ) {
/**
* Filters a specific default network option.
*
* The dynamic portion of hook name, `$option`, refers to the option name.
*
* @ Since 3.4.0
* @since 4.4.0 The `$option` parameter was added.
* @since 4.7.0 The `$network_id` parameter was added.
*
* @param mixed $default Встановлення до відновлення, якщо мережа опція не існує
* в thebase.
* @param string $option Option name.
* @param int $network_id ID of the network.
*/
return apply_filters( "default_site_option_{$option}", $default, $option, $network_id );
}
if ( ! is_multisite() ) {
/** Цей filter is documented в wp-includes/option.php */
$default = apply_filters( 'default_site_option_' . $option, $default, $option, $network_id );
$ value = get_option ($ option, $ default);
} else {
$cache_key = "$network_id:$option";
$ value = wp_cache_get ($ cache_key, 'site-options');
if ( ! isset( $value ) || false === $value ) {
$row = $wpdb->get_row( $wpdb->prepare( "SELECT meta_value FROM $wpdb->sitemeta WHERE meta_key = %s AND site_id = %d", $option, $network_id ) );
// Has to be get_row() instead of get_var() because of funkiness with 0, false, null values.
if ( is_object( $row ) ) {
$value = $row->meta_value;
$ value = maybe_unserialize ($ value);
wp_cache_set($cache_key, $value, 'site-options');
} else {
if ( ! is_array( $notoptions ) ) {
$notoptions = array();
}
$notoptions[ $option ] = true;
wp_cache_set($notoptions_key, $notoptions, 'site-options');
/** Цей filter is documented в wp-includes/option.php */
$value = apply_filters( 'default_site_option_' . $option, $default, $option, $network_id );
}
}
}
if ( ! is_array( $notoptions ) ) {
$notoptions = array();
wp_cache_set($notoptions_key, $notoptions, 'site-options');
}
/**
* Filters the value of an existing network option.
*
* The dynamic portion of hook name, `$option`, refers to the option name.
*
* @ since 2.9.0 As 'site_option_'. $key
* @ Since 3.0.0
* @since 4.4.0 The `$option` parameter was added.
* @since 4.7.0 The `$network_id` parameter was added.
*
* @param mixed $value Value of network option.
* @param string $option Option name.
* @param int $network_id ID of the network.
*/
return apply_filters( "site_option_{$option}", $value, $option, $network_id );
}
