prepare("SELECT target_price FROM price_controls WHERE symbol = ? AND is_active = 1 ORDER BY created_at DESC LIMIT 1"); $stmt->execute([$symbol]); $manipulated = $stmt->fetchColumn(); if ($manipulated !== false) { return (float)$manipulated; } // Otherwise return standard current price $stmt = $db->prepare("SELECT current_price FROM cryptocurrencies WHERE symbol = ?"); $stmt->execute([$symbol]); return (float)$stmt->fetchColumn() ?: 0.0; } function processOrders(): void { // This could be a background job // It would check pending orders against current prices and fill them }