/**
* This Function checks GET parameter or If Cookie exists, and realizes correspondent scenario (shows current user's choice)
*/
function checkGetParameter()
{
if (isset($_GET['sort'])) {
$sortBy = $_GET['sort'];
//echo "сейчас сработал GET<br>".$sortBy; // проверка
switch ($sortBy) {
case 'name':
setcookie("sort", "name", time() + 3600, "source-it.me/day-6/");
$product_info = sortByName(getProductInfo());
break;
case 'cheap':
setcookie("sort", "cheap", time() + 3600, "source-it.me/day-6/");
$product_info = sortByPriceAsc(getProductInfo());
break;
case 'expensive':
setcookie("sort", "expensive", time() + 3600, "source-it.me/day-6/");
$product_info = sortByPriceDes(getProductInfo());
break;
}
exit;
}
if (isset($_COOKIE['sort'])) {
$sortBy = $_COOKIE['sort'];
//echo "сейчас сработал cookie<br>".$sortBy; // проверка
if ($sortBy == "name") {
$product_info = sortByName(getProductInfo());
exit;
} elseif ($sortBy == "cheap") {
$product_info = sortByPriceAsc(getProductInfo());
exit;
} elseif ($sortBy == "expensive") {
$product_info = sortByPriceDes(getProductInfo());
exit;
}
}
if (!isset($sortBy)) {
// default sorting - by name
$product_info = sortByName(getProductInfo());
}
}
function sortByPriceDesc($a, $b)
{
return -1 * sortByPriceAsc($a, $b);
}
