select data from database

<?php
#SELECT data from table
$sql = <<<SQL
    SELECT id,userid,fullname,email,password
    FROM `user`

SQL;

if(!$result = $db->query($sql)){
    die('There was an error running the query [' . $db->error . ']');
}
while($row = $result->fetch_assoc()){
    echo '<hr>';
    echo @++$no;
    echo '<hr>';
    echo $row['email'] . '<br />';
    echo $row['password'] . '<br />';
    echo $row['userid'] . '<br />';
}
?>