Connection failed: SQLSTATE[HY000] [1045] Access denied for user 'root'@'localhost' (using password: YES)  Connection failed: SQLSTATE[HY000] [1045] Access denied for user 'root'@'localhost' (using password: YES)  <br />
<b>Fatal error</b>:  Uncaught Error: Call to a member function query() on null in /www/wwwroot/yaozu.net/api/common.php:5
Stack trace:
#0 /www/wwwroot/yaozu.net/dic.php(4): require()
#1 {main}
  thrown in <b>/www/wwwroot/yaozu.net/api/common.php</b> on line <b>5</b><br />