How to grab an array from a query - php

Question

I have a function getCart which has a complicated query that is merged together. I want to select only one array that is $cart['tee_times'] = array(); and place that array in another function. How can I accomplish this?
Here is a snippet of the query I am trying to pull from.
function getCart($id, DBConnection $connection) {
$query = 'SELECT * FROM cart WHERE IDCart=:cart_id LIMIT 1';
$prepared = array(
"cart_id" => $id
);
$results = $connection->fetch($query, $prepared);
$cart = !empty($results) ? $results[0] : null;
if (isset($cart)) {
$cart['IDCustomer'] = isset($cart['IDCustomer']) ? (int)$cart['IDCustomer'] : null;
$cart['IDDestination'] = isset($cart['IDDestination']) ? (int)$cart['IDDestination'] : null;
$cart['total'] = 0;
$cart['tee_times'] = array();
$cart['rooms'] = array();
$cart['cars'] = array();
$query = '
SELECT
a.*,
e. city_name,
f.IDDestination,
((CASE DATE_FORMAT(a.teetime_dt, "%w")
WHEN 0 THEN b.sun
WHEN 1 THEN b.mon
WHEN 2 THEN b.tue
WHEN 3 THEN b.wed
WHEN 4 THEN b.thu
WHEN 5 THEN b.fri
WHEN 6 THEN b.sat
ELSE 0
END) * a.no_rounds * a.no_golfers) price,
c.tax_rate
FROM cart_course_teetimes a
JOIN course_priceplan b
ON b.IDCoursePricePlan = a.IDCoursePricePlan
JOIN course_tax c
ON c.IDCourseTax = a.IDCourseTax
JOIN course d
ON d.IDCourse = b. IDCourse
JOIN vw_cities e
ON e.IDCity = d. IDCity
JOIN destinations_cities f
ON f.IDCity = e.IDCity
WHERE IDCart=:cart_id
';
$results = $connection->fetch($query, $prepared);
foreach ($results as $row) {
$formatted = array(
'IDCartTeetimes' => (int)$row['IDCartTeetimes'],
'IDCoursePricePlan' => (int)$row['IDCoursePricePlan'],
'IDCourseTax' => (int)$row['IDCourseTax'],
'teetime_date' => $row['teetime_dt'],
'num_golfers' => (int)$row['no_golfers'],
'num_rounds' => (int)$row['no_rounds'],
'price' => (float)$row['price'],
'tax_rate' => (float)$row['tax_rate'],
'city_name' => $row['city_name'],
'IDDestination' => (int)$row['IDDestination'],
);
$cart['tee_times'][] = $formatted;
$cart['total'] += $formatted['price'];
}
Here is my function and my attempt at retrieving the tee_times array
function filterCart($cart_id, DBConnection $connection) {
$cart = getCart($cart_id, $connection);
if (!isset($cart)) {
http_response_code(404);
return 'Cart does not exist.';
}
$results =$cart['tee_times'];
echo $results;
$id = null;
foreach ($results as $row){
var_dump($row['IDDestination']);

Answer 1

If you want to filter out courses that have more than one IDDestination, change the WHERE clause to:
WHERE IDCart = :cart_id
AND IDCart NOT IN (
SELECT IDCart
FROM course a
JOIN destinations_cities b ON b.IDCity = a.IDCity
GROUP BY IDCart
HAVING COUNT(*) > 1)