接続エラー<br />
<b>Fatal error</b>:  Uncaught Error: Call to a member function query() on null in /home/ishikawashika/www/blog/index.php:22
Stack trace:
#0 {main}
  thrown in <b>/home/ishikawashika/www/blog/index.php</b> on line <b>22</b><br />