How to set and use the validity period of php session

php Session validity period setting and usage method: 1. Set the validity period and opening of the session, the code is [ini_set(session.cookie_lifetime...)]; 2. Open the session, and then get the corresponding session.

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How to set and use the php session validity period:

Method 1: Set the validity period of the session and open it

function actionLogin(){
   ini_set('session.gc_maxlifetime', "60"); // 设置为和“session.cookie_lifetime”一样的时间；(个人理解：设定session有效期)
   ini_set("session.cookie_lifetime","60"); //这个代表SessionID在客户端Cookie储存的时间，默认是0，代表浏览器一关闭SessionID就作废……就是因为这个所以Session不能永久使用！
   session_start();
   $_SESSION['access_token']='c262e61cd13ad99fc650e6908c7e5e65b63d2f32185ecfed6b801ee3fbdd5c8b';
   echo @$_SESSION['access_token'];
exit;
}

Method 2: If you want to retrieve the session saved above, first open the session, and then retrieve the corresponding session

function actionStest(){
   session_start();
   echo @$_SESSION['access_token'];exit;
}

The effect of F12 is as follows

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