User Activation Message Hook - MultiSite

User Activation Message Hook - MultiSite

add_action('my_do_active_user_message_hook', 'check_header_for_active_user');
/**
 * Check for the set activated user and echo a message on the home page
 */
function check_header_for_active_user() {
	if ( ! session_id() ) {
		session_start();
	}
	if ( isset($_SESSION['my_active_user_variable']) && ! empty( $_SESSION['my_active_user_variable'] ) ) {
		$user = $_SESSION['my_active_user_variable'];
	
		echo '<div>'. sprintf( __( 'Dear %s. Your account is now active!' ), $user->user_login ).'</div>';
	
		// Unset the session variable since we don't needed anymore
		unset($_SESSION['my_active_user_variable']);
	}
}