PHP回话过期重新登录（超过一段时间以后需要重新登录）
//开启sessionsession_start();
if(isset($_SESSION['last_access']) && (time()-$_SESSION['last_access'])>600)
{
//此时应该设置session失效
echo '<script> alert("回话已经过期请重新登录");window.location.href = "/login.php"</script>';
exit();
}
//session 中last_access的值没有设置或者设置的时间大于10秒就重新设置为当前时间
if(!isset($_SESSION['last_access'])||(time()-$_SESSION['last_access'])>10)
{
$_SESSION['last_access'] = time();
}
超过十分钟重新登录，首次登录也需要foreach ($rs as $key => $v) {
if ($username == $v['username'] && password_verify($password,$v['password'])){ //使用password_verify函数验证原始密码和散列哈希
session_start();
$_SESSION['logo']="cb";
$_SESSION['id']=$v['id'];
$_SESSION['role']=$v['role'];
$_SESSION['renyuan']=$v['renyuan'];
$_SESSION['last_access'] = time();
$arr['result'] = 1;
//
$ip =$_SERVER['REMOTE_ADDR'];
$shiijan = date("Y-m-d:H:i:s");
$dz ="登录本系统";
$log = "INSERT INTO cxsj_zyfp_log (user, action,status,shijian )VALUES ( '{$username}', ' $dz','成功','$shiijan')";
mysqli_query($db,$log);
//
exit(json_encode($arr));
$exist = true;
break;
} else{
$exist = false;
}
}
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