Warning: mysqli_connect(): MySQL server has gone away in D:\web\pw\connect\conn.php on line 109

Warning: mysqli_connect(): Error while reading greeting packet. PID=7316 in D:\web\pw\connect\conn.php on line 109

Warning: mysqli_connect(): (HY000/2006): MySQL server has gone away in D:\web\pw\connect\conn.php on line 109
无法连接到数据库 MySQL Server