<?php
$user='root';
$password='user';
$database='mysql';
$pdo=null;

try {
    $pdo = new PDO( "mysql:host=localhost;dbname=$database",
        $user, $password );
    $pdo->setAttribute( PDO::ATTR_ERRMODE,
        PDO::ERRMODE_EXCEPTION );
    $statement = $pdo->query('SELECT * from db');
    $statement->setFetchMode(PDO::FETCH_ASSOC);
    while($row = $statement->fetch()) {
        print_r($row);
    }
} catch ( PDOException $e ) {
    print 'Exception!: ' . $e->getMessage();
}
$pdo = null;