I can’t jump to the homepage after logging in. Gods, please help me. Urgent.

Question

After successfully logging in to login.html, I jump to this login.php page and cannot jump to the homepage index.html (php). The header function is used, js

Answer 1

This query has not already queried the account number and password. Why do we need to use the if condition again below to determine the account number and password?

Answer 2

header("Location: https://www.php.cn/");
exit;

Try using this, alertGo has never been used before