How to set session timeout in php

How to set the session timeout in php: You can use the ini_set() function to change the attribute value of the current context to achieve the purpose of setting the session timeout, such as: [ini_set('session.gc_maxlifetime', " 3600");].

First method:

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Set the php.ini configuration file, set the session.gc_maxlifetime and session.cookie_lifetime node attribute values. Of course, you can also use the ini_set function to change the attribute values ​​​​of the current context environment:

ini_set('session.gc_maxlifetime', "3600"); // 秒
ini_set("session.cookie_lifetime","3600"); // 秒

Second method:

Set Session timestamp

When the login is successful, set the timestamp to 1 hour after the current time, $_SESSION['expiretime'] = time() 3600;.

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Use the following code to check the user login status:

if(isset($_SESSION['expiretime'])) {  
  
    if($_SESSION[&#39;expiretime&#39;] < time()) {  
  
        unset($_SESSION[&#39;expiretime&#39;]);  
  
        header(&#39;Location: logout.php?TIMEOUT&#39;); // 登出  
  
        exit(0);  
  
    } else {  
  
        $_SESSION[&#39;expiretime&#39;] = time() + 3600; // 刷新时间戳  
  
    }  
  
}

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