File Contents: /home/u885320773/domains/sugatu.in/process/addToCart.php

<?php
session_start();
include '../admin/config.php'; // Your database connection file

if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['productId'])) {
    $productId = $_POST['productId'];
    
    // Check if the product exists in the cart for the current session
    $sessionId = session_id();
    $stmt = $conn->prepare("SELECT id, quantity FROM cart WHERE session_id = ? AND product_id = ?");
    $stmt->bind_param("si", $sessionId, $productId);
    $stmt->execute();
    
    // Bind result variables
    $stmt->bind_result($cartId, $existingQuantity);
    
    // Fetch the result
    $stmt->fetch();
    
    if ($stmt->num_rows > 0) {
        // Product already exists in the cart, update quantity
        $newQuantity = $existingQuantity + 1;
        $updateStmt = $conn->prepare("UPDATE cart SET quantity = ? WHERE id = ?");
        $updateStmt->bind_param("ii", $newQuantity, $cartId);
        $updateStmt->execute();
    } else {
        // Product doesn't exist in the cart, insert new record
        $insertStmt = $conn->prepare("INSERT INTO cart (session_id, product_id, quantity) VALUES (?, ?, 1)");
        $insertStmt->bind_param("si", $sessionId, $productId);
        $insertStmt->execute();
    }
    
    $stmt->close();
    $conn->close();
    // You can echo a success message or any response if needed
}
?>

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