Automattic\WooCommerce\Internal\Utilities

Users::get_site_user_meta │ public static │ WC 1.0

Site-specific method of retrieving the requested user meta.

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

Method of the class: Users{}

No Hooks.

Returns

Mixed. An array of values if $single is false. The value of meta data field if $single is true. False for an invalid $user_id (non-numeric, zero, or negative value). An empty string if a valid but non-existing user ID is passed.

Usage

$result = Users::get_site_user_meta( $user_id, $key, $single );
$user_id(int) (required)
User ID.
$key(string)
The meta key to retrieve. By default, returns data for all keys.
Default: ''
$single(true|false)
Whether to return a single value. This parameter has no effect if $key is not specified.
Default: true (WordPress's get_user_meta() defaults this to false)

Users::get_site_user_meta() code WC 10.7.0

woocommerce/src/Internal/Utilities/Users.php 
public static function get_site_user_meta( int $user_id, string $key = '', bool $single = true ) {
	global $wpdb;
	$site_specific_key = $key . '_' . rtrim( $wpdb->get_blog_prefix( get_current_blog_id() ), '_' );
	return get_user_meta( $user_id, $site_specific_key, $single );
}