DB接続エラー:SQLSTATE[HY000] [1044] Access denied for user 'xxx47861_user'@'sv10044.xserver.jp' to database 'xxx47861_wp'<br />
<b>Warning</b>:  Undefined array key "log" in <b>/home/xxx47861/libra-k.com/public_html/Quiz/index.php</b> on line <b>5</b><br />
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<b>Warning</b>:  Undefined variable $db in <b>/home/xxx47861/libra-k.com/public_html/Quiz/index.php</b> on line <b>6</b><br />
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<b>Fatal error</b>:  Uncaught Error: Call to a member function prepare() on null in /home/xxx47861/libra-k.com/public_html/Quiz/index.php:6
Stack trace:
#0 {main}
  thrown in <b>/home/xxx47861/libra-k.com/public_html/Quiz/index.php</b> on line <b>6</b><br />