Warning: mysqli::__construct(): php_network_getaddresses: getaddrinfo for infodb.ansan.ac.kr failed: Temporary failure in name resolution in /users/2021/i2151054/public_html/2022/WebDB/oopSelect.php on line 5

Fatal error: Uncaught mysqli_sql_exception: php_network_getaddresses: getaddrinfo for infodb.ansan.ac.kr failed: Temporary failure in name resolution in /users/2021/i2151054/public_html/2022/WebDB/oopSelect.php:5 Stack trace: #0 /users/2021/i2151054/public_html/2022/WebDB/oopSelect.php(5): mysqli->__construct() #1 {main} thrown in /users/2021/i2151054/public_html/2022/WebDB/oopSelect.php on line 5