<?php
$host = '127.0.0.1';
$db = 'Northwind';
$user = 'sa';
$pass = 'secret';

$pdo = new PDO("sqlsrv:server=$host;Database=$db", $user, $pass);

$stmt = $pdo->query('SELECT * FROM contact');
while ($row = $stmt->fetch())
{
	echo json_encode($row) . "\n";
}