在 PHP 中经过一定时间后的 session_destroy()
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session_destroy() after certain amount of time in PHP
提问by Si8
I am currently saving a session in my form page:
我目前正在我的表单页面中保存一个会话：
$testingvalue = "SESSION TEST";
$_SESSION['testing'] = $testingvalue;
$testingvalue = "会话测试";
$_SESSION['testing'] = $testingvalue;
On another page I am calling the session to use the value:
在另一个页面上，我正在调用会话以使用该值：
<?php
session_start(); // make sure there is a session
echo $_SESSION['testing']; //prints SESSION TEST???
?>
Now I want to use the
现在我想使用
session_destroy();
session_destroy();
to destroy the session. But what I would like to do is destroy the session after 2 hours have been passed.
销毁会话。但我想做的是在 2 小时后销毁会话。
Any idea on how to do it and also where should I put it?
关于如何做以及我应该把它放在哪里的任何想法？
I have something like this:
我有这样的事情：
<?php
session_start();
// 2 hours in seconds
$inactive = 7200;
$session_life = time() - $_session['testing'];
if($session_life > $inactive)
{
session_destroy();
}
$_session['testing']=time();
echo $_SESSION['testing']; //prints NOTHING?
?>
Will that work?
那行得通吗？
If I am inactive for more than 2 hours this should be blank?:
如果我超过 2 小时没有活动，这应该是空白的？：
echo $_SESSION['testing'];
回声 $_SESSION['测试'];
回答by wardpeet
Something like this should work
这样的事情应该工作
<?php
// 2 hours in seconds
$inactive = 7200;
ini_set('session.gc_maxlifetime', $inactive); // set the session max lifetime to 2 hours
session_start();
if (isset($_SESSION['testing']) && (time() - $_SESSION['testing'] > $inactive)) {
// last request was more than 2 hours ago
session_unset(); // unset $_SESSION variable for this page
session_destroy(); // destroy session data
}
$_SESSION['testing'] = time(); // Update session
回答by amigura
you need a static start time to expire. $session_life > $inactivewill always be greater no matter what.
您需要一个静态开始时间才能到期。$session_life > $inactive无论如何都会变得更大。
session_start();
$testingvalue = "SESSION TEST";
$_SESSION['testing'] = $testingvalue;
// 2 hours in seconds
$inactive = 7200;
$_SESSION['expire'] = time() + $inactive; // static expire
if(time() > $_SESSION['expire'])
{
$_SESSION['testing'] = '';
session_unset();
session_destroy();
$_SESSION['testing'] = '2 hours expired'; // test message
}
echo $_SESSION['testing'];
