Warning: Undefined variable $userId in D:\homepage\htdocs\sejinpaper\login.html on line 8
Fatal error: Uncaught Error: Call to undefined function mysql_query() in D:\homepage\htdocs\sejinpaper\login.html:9
Stack trace:
#0 {main}
thrown in D:\homepage\htdocs\sejinpaper\login.html on line 9