Warning: mysqli::__construct(): php_network_getaddresses: getaddrinfo for db failed: Temporary failure in name resolution in /var/www/html/functions.php on line 11

Fatal error: Uncaught mysqli_sql_exception: php_network_getaddresses: getaddrinfo for db failed: Temporary failure in name resolution in /var/www/html/functions.php:11 Stack trace: #0 /var/www/html/functions.php(11): mysqli->__construct('db', 'root', Object(SensitiveParameterValue), 'getpsc') #1 /var/www/html/index.php(3): dbConnection() #2 {main} thrown in /var/www/html/functions.php on line 11