<?php

// initialize base variables for PDO connection
$host = 'localhost';
$user = 'root';
$password = '';
$dbname = 'pdolab';

// initialize DSN
$dsn = 'mysql:host=' . $host . ';dbname=' . $dbname;

// initialize PDO connection
$pdo = new PDO($dsn, $user, $password);

// PDO query

$statement = $pdo->query('SELECT * FROM posts');

while ($row = $statement->fetch(PDO::FETCH_ASSOC)) {
    echo $row['title'] . '<br>';
}