Warning: mysqli::__construct(): php_network_getaddresses: getaddrinfo for bj-cdb-3ulsumzr.sql.tencentcdb.com failed: No such host is known. in C:\xampp\htdocs\translavie\php\mall\db.php on line 7

Fatal error: Uncaught mysqli_sql_exception: php_network_getaddresses: getaddrinfo for bj-cdb-3ulsumzr.sql.tencentcdb.com failed: No such host is known. in C:\xampp\htdocs\translavie\php\mall\db.php:7 Stack trace: #0 C:\xampp\htdocs\translavie\php\mall\db.php(7): mysqli->__construct('bj-cdb-3ulsumzr...', 'root', Object(SensitiveParameterValue), 'mall') #1 C:\xampp\htdocs\translavie\php\mall\getcourseproducts.php(3): include('C:\\xampp\\htdocs...') #2 {main} thrown in C:\xampp\htdocs\translavie\php\mall\db.php on line 7