query('SELECT COUNT(*) FROM products')->fetchColumn();
// Today's Sales
$today = date('Y-m-d');
$stmt_today = db()->prepare("SELECT COUNT(*) as num_transactions, SUM(total_amount) as total_sales FROM sales WHERE DATE(sale_date) = ?");
$stmt_today->execute([$today]);
$today_sales = $stmt_today->fetch(PDO::FETCH_ASSOC);
// All-Time Sales
$stmt_all_time = db()->query("SELECT COUNT(*) as num_transactions, SUM(total_amount) as total_sales FROM sales");
$all_time_sales = $stmt_all_time->fetch(PDO::FETCH_ASSOC);
// Low Stock
$low_stock_threshold = 5;
$stmt_low_stock = db()->prepare('SELECT COUNT(*) FROM products WHERE stock <= ?');
$stmt_low_stock->execute([$low_stock_threshold]);
$low_stock_count = $stmt_low_stock->fetchColumn();
?>
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