//欢迎页面（welcome_reserve.php3）
//这个页面首先判断用户是否正确登录，如未登录，就转到登录页面。
session_start();
if((!$user_id)or(!$user_array[ticket_day])or(!$user_array[ticket_num])){
Header("Location: login.php3");
}
?>
What is user stickiness
Reasons for session failure
Session failure solution
What to do if an error occurs in the script of the current page
What are the levels of mobile user star ratings?
What are the electronic contract signing platforms?
Regular expression usage of arbitrary characters
What does it mean when a message has been sent but rejected by the other party?
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
