<?php
//dont forget to change default session timer for session variables in php.ini
session_start();
include 'Database.class.php';
//Check if the get value exists, else go back home.
if (isset($_GET['productId'])) {
$productId = $_GET['productId'];
if (isset($_SESSION['numOfCartItems'])) {
//check if exists in database
checkProduct($productId);
$_SESSION['numOfCartItems']++;
} else {
//check if exists in database
checkProduct($productId);
$_SESSION['numOfCartItems'] = 1;
}
//redirect home when finished. Will need to change this eventually to just go back to last page
header("location:../home");
} else {
//if a productID isn't set in get, redirect home
header("location:../home");
}
function checkProduct($productId)
{
//connect to db
$dbh = Database::getDB();
//prepare qry
$check = $dbh->prepare("SELECT iid, price, quantity\r\n\t\t\t\t\t\t\t\tFROM inventory\r\n\t\t\t\t\t\t\t\tWHERE iid=:iid");
//Bind the values
$check->bindParam(':iid', $productId, PDO::PARAM_INT);
//dont forget to change default session timer for session variables in php.ini
session_start();
include 'Database.class.php';
//Check if the get value exists, else go back home.
if (isset($_POST['productId']) && isset($_POST['quantity'])) {
//Filter numbers for now. Might have to change if not only numbers
$productId = filter_var($_POST['productId'], FILTER_SANITIZE_NUMBER_INT);
$quantity = filter_var($_POST['quantity'], FILTER_SANITIZE_NUMBER_INT);
if (isset($_SESSION['numOfCartItems'])) {
//check if exists in database
checkProduct($productId, $quantity);
$_SESSION['numOfCartItems'] += $quantity;
} else {
//check if exists in database
checkProduct($productId, $quantity);
$_SESSION['numOfCartItems'] = $quantity;
}
//grab previous page
$previous = "javascript:history.go(-1)";
if (isset($_SERVER['HTTP_REFERER'])) {
$previous = $_SERVER['HTTP_REFERER'];
}
//redirect to continue page, they decide if they want to order or go back.
$_SESSION['itemsAddedFlag'] = 1;
$_SESSION['previousAddress'] = $previous;
header("location:../continue");
} else {
//if a productID and quantity isn't set in get, redirect home
header("location:../home");
}
