Automattic\WooCommerce\Internal\Utilities

Users::update_site_user_meta │ public static │ WC 1.0

Site-specific means of updating user meta.

This is a multisite-aware wrapper around WordPress's own update_user_meta() and works by prefixing the supplied meta key with a blog-specific meta key.

Method of the class: Users{}

No Hooks.

Returns

Int|true|false. Meta ID if the key didn't exist, true on successful update, false on failure or if the value passed to the function is the same as the one that is already in the database.

Usage

$result = Users::update_site_user_meta( $user_id, $meta_key, $meta_value, $prev_value );
$user_id(int) (required)
User ID.
$meta_key(string) (required)
Metadata key.
$meta_value(mixed) (required)
Metadata value. Must be serializable if non-scalar.
$prev_value(mixed)
Previous value to check before updating. If specified, only update existing metadata entries with this value. Otherwise, update all entries.
Default: ''

Users::update_site_user_meta() code WC 10.8.1

woocommerce/src/Internal/Utilities/Users.php 
public static function update_site_user_meta( int $user_id, string $meta_key, $meta_value, $prev_value = '' ) {
	global $wpdb;
	$site_specific_key = $meta_key . '_' . rtrim( $wpdb->get_blog_prefix( get_current_blog_id() ), '_' );
	return update_user_meta( $user_id, $site_specific_key, $meta_value, $prev_value );
}