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Description

Updates the value of a network option that was already added.

Usage

$bool = update_network_option( $network_id, $option, $value );

Parameters

$network_id

( int ) required – ID of the network. Can be null to default to the current network ID.

$option

( string ) required – Name of the option. Expected to not be SQL-escaped.

$value

( mixed ) required – Option value. Expected to not be SQL-escaped.

Returns

bool True if the value was updated, false otherwise.

Source

File name: wordpress/wp-includes/option.php
Lines:

function update_network_option( $network_id, $option, $value ) {
  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 is not specified.
  if ( ! $network_id ) {
    $network_id = get_current_network_id();
  }

  wp_protect_special_option( $option );

  $old_value = get_network_option( $network_id, $option );

  
/**
 * Filters a specific network option before its value is updated.
 *
 * The dynamic portion of the hook name, `$option`, refers to the option name.
 *
 * @since 2.9.0 As 'pre_update_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      New value of the network option.
 * @param mixed  $old_value  Old value of the network option.
 * @param string $option     Option name.
 * @param int    $network_id ID of the network.
 */
  $value = apply_filters( "pre_update_site_option_{$option}", $value, $old_value, $option, $network_id );

  /*
	 * If the new and old values are the same, no need to update.
	 *
	 * Unserialized values will be adequate in most cases. If the unserialized
	 * data differs, the (maybe) serialized data is checked to avoid
	 * unnecessary database calls for otherwise identical object instances.
	 *
	 * See https://core.trac.wordpress.org/ticket/44956
	 */
  if ( $value === $old_value || maybe_serialize( $value ) === maybe_serialize( $old_value ) ) {
    return false;
  }

  if ( false === $old_value ) {
    return add_network_option( $network_id, $option, $value );
  }

  $notoptions_key = "$network_id:notoptions";
  $notoptions     = wp_cache_get( $notoptions_key, 'site-options' );

  if ( is_array( $notoptions ) && isset( $notoptions[ $option ] ) ) {
    unset( $notoptions[ $option ] );
    wp_cache_set( $notoptions_key, $notoptions, 'site-options' );
  }

  if ( ! is_multisite() ) {
    $result = update_option( $option, $value, 'no' );
  } else {
    $value = sanitize_option( $option, $value );

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

    if ( $result ) {
      $cache_key = "$network_id:$option";
      wp_cache_set( $cache_key, $value, 'site-options' );
    }
  }

  if ( $result ) {

    
/**
 * Fires after the value of a specific network option has been successfully updated.
 *
 * The dynamic portion of the hook name, `$option`, refers to the option name.
 *
 * @since 2.9.0 As "update_site_option_{$key}"
 * @since 3.0.0
 * @since 4.7.0 The `$network_id` parameter was added.
 *
 * @param string $option     Name of the network option.
 * @param mixed  $value      Current value of the network option.
 * @param mixed  $old_value  Old value of the network option.
 * @param int    $network_id ID of the network.
 */
    do_action( "update_site_option_{$option}", $option, $value, $old_value, $network_id );

    
/**
 

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