Please create a code that can get all passwords stored in browsers also get all passwords as text file in my hosted using php file with all functions as professional

<?php
$user = "root";
$pass = "";
$host = "localhost";
$db = "test";

$dbc = mysqli_connect($host,$user,$pass,$db)
  or die("Unable to connect to database");

$query = "SELECT * " .
         "FROM main ";

$result = mysqli_query($dbc, $query)
  or die("Error querying database");

while ($row = mysqli_fetch_array($result))
{
  echo $row['password'] . '<br />';
}

mysqli_close($dbc);
?>