PHP read the table data from SQLite3 DB and display it as tab separated values

Please help me run the code for sqlite3 the below code is for mysql.

<?php
$con = mysql_connect("localhost","user","");

if (!$con) {
die('Could not connect: ' . mysql_error());
}

mysql_select_db("highcharts", $con);

$result = mysql_query("SELECT * FROM highcharts_php");

while($row = mysql_fetch_array($result)) {
echo $row['timespan'] . "\t" . $row['visits']. "\n";
}

mysql_close($con);
?>

i try below code pls suggest edit, pls help i have working knowledge of php and sql.

<?php

class MyDB extends SQLite3
{
function __construct()
{
    $this->open('mysqlitedb.db');
}
}

$db = new MyDB();


$result = $db->query('SELECT bar FROM foo');
var_dump($result->fetchArray());
?>