几分钟后PHP会话超时_course

<div class="post-text" itemprop="text"> <p>good morning, I am trying to create a session that times out after some minutes, I tried out the code below but it just destroys the session when I refresh the page</p> <pre><code>&lt;?php //start session session_start(); //database connection include('database/connection.php'); //site config $site_name = "Lilaga"; //session expiration timer $expireAfter = 1; if(isset($_SESSION['phone'])){ $sql = mysqli_query($connection, "SELECT * FROM customer WHERE phone =$_SESSION[phone]"); $row = mysqli_fetch_array($sql); $name = $row['firstname'] ." ". ucfirst($row['lastname']); $phone = $row['phone']; $email = $row['email']; $customerID = $row['customerID']; $secondsInactive = time() - $_SESSION['phone']; $expireAfterSeconds = $expireAfter * 60; if($secondsInactive &gt;= $expireAfterSeconds){ session_unset(); session_destroy(); } } ?&gt; </code></pre> </div>

请问php中session的超时时间问题_course

新手初学php，许多不了解的地方求教。以前学过asp，知道有个session.timeout可以设置超时时间，默认是20分钟。 但PHP里面没有找到类似设置会话超时时间的函数，不知如果php页面不刷新