SELECT * FROM `book_members`;<br><br />
<b>Warning</b>:  Undefined variable $mysqli in <b>/users/2021/i2151025/public_html/2022/WebDB/select_test.php</b> on line <b>15</b><br />
<br />
<b>Fatal error</b>:  Uncaught Error: Call to a member function query() on null in /users/2021/i2151025/public_html/2022/WebDB/select_test.php:15
Stack trace:
#0 {main}
  thrown in <b>/users/2021/i2151025/public_html/2022/WebDB/select_test.php</b> on line <b>15</b><br />