Automattic\WooCommerce\Internal\Utilities

Users::get_user_in_current_site │ public static │ WC 1.0

Get a user from a valid user ID, but only if the active user is able to see them.

In a multisite context, that may mean that they both must be members of the current blog, or else the active user must either have special permissions (manage_network_users) or else a special legacy mode (woocommerce_network_wide_customers) is enabled.

Method of the class: Users{}

No Hooks.

Returns

WP_User|WP_Error.

Usage

$result = Users::get_user_in_current_site( $user_id, ?int $requesting_user_id );
$user_id(int) (required)
The ID of the desired user.
?int $requesting_user_id
.
Default: null

Users::get_user_in_current_site() code WC 10.8.1

woocommerce/src/Internal/Utilities/Users.php 
public static function get_user_in_current_site( $user_id, ?int $requesting_user_id = null ) {
	// User ID is expected to be an integer. Cast it if we can (avoiding additional runtime warnings), else treat it as 0.
	$user_id = is_numeric( $user_id ) ? (int) $user_id : 0;

	$legacy_proxy       = wc_get_container()->get( LegacyProxy::class );
	$requesting_user_id = $requesting_user_id > 0 ? $requesting_user_id : wp_get_current_user()->ID;
	$error              = new WP_Error( 'wc_user_invalid_id', __( 'Invalid user ID.', 'woocommerce' ) );

	if ( $user_id <= 0 ) {
		return $error;
	}

	$user = get_userdata( $user_id );
	if ( ! $user instanceof WP_User || ! $user->exists() ) {
		return $error;
	}

	if (
		$legacy_proxy->call_function( 'is_multisite' )
		&& ! $legacy_proxy->call_function( 'is_user_member_of_blog', $user->ID )
		&& ! $legacy_proxy->call_function( 'user_can', $requesting_user_id, 'manage_network_users' )
		&& get_site_option( 'woocommerce_network_wide_customers', 'no' ) !== 'yes'
	) {
		return $error;
	}

	return $user;
}