Database connection error php Server doesn't have mysql moudle loaded

Question

1、使用集成环境：phpstudy 8.1 ，在Dreamweaver cs6建立数据库连接时，弹出下面的错误提示：
PhP Server doesn't  have the mysql moudle loaded or you can't use the mysql_(p) connect functions.

The php_mysqli extension has been loaded.

2. When switching to Appserv5.2 version, the database connection can be successfully established in Dreamweaver cs6.

Please tell me how to solve the above problem. thank you all.