Simple Data Insertion using PHP PDO

php-pdo.php

<?php

$hostname = 'localhost';
$username = 'root';
$password = 'root';

try {
    $dbh = new PDO("mysql:host=$hostname;dbname=prod", $username, $password);
    echo 'Connected to database';

    $id = sha1(time());
    $ds = 'content';
    $created = time();

    $data = array($id, $ds, $created);

    $s = $dbh->prepare('INSERT INTO provider_data (id, data_string, created) VALUES(?,?,?)');
    $count = $s->execute($data);

    echo $count;
    }
catch(PDOException $e)
    {
    echo $e->getMessage();
    }
?>