session_start(); if(isset($_SESSION['user_id'])) { $user_id = getLoginUserID(); // do something with $user_id } else { // redirect to login page }
require_once 'session.php'; // include session library session_start(); if(isset($_SESSION['user_id'])) { $user_id = getLoginUserID(); // do something with $user_id } else { // redirect to login page }In this example, the session library is included by requiring the session.php file. This library likely contains functions that help start and manage sessions in PHP. Once the library is included, the code is identical to the previous example. Based on the function name and the examples provided, it's likely that the getLoginUserID function is part of a package or library that handles user authentication and session management in PHP. The package may provide other functions or classes for working with sessions, user accounts, permissions, and other related functionality.