System Project In Php — Online Pharmacy Management

Maintaining stock accuracy Solution: Use database transactions; decrement stock only after order confirmation; prevent negative stock with CHECK (stock >= 0) .

header('Location: cart.php'); ?> <?php require_once 'includes/config.php'; if (!isset($_SESSION['user_id'])) header('Location: login.php'); exit(); online pharmacy management system project in php

$sql = "INSERT INTO medicines (name, category_id, price, stock, requires_prescription, description, image) VALUES (?, ?, ?, ?, ?, ?, ?)"; $stmt = $pdo->prepare($sql); $stmt->execute([$name, $category_id, $price, $stock, $requires_prescription, $description, $image]); decrement stock only after order confirmation

$sql = "INSERT INTO users (name, email, password, phone) VALUES (?, ?, ?, ?)"; $stmt = $pdo->prepare($sql); = 0) . header('Location: cart.php')