PDO select and show data array with same date - php

Question

I've made this code. To show the data based on same date (day)
$group = array();
$stmt = $conn->prepare("
SELECT *,date(date_added) as dateadded
FROM rr
ORDER BY dateadded DESC
");
$stmt->execute();
$stmt->setFetchMode(PDO::FETCH_ASSOC);
while ($res = $stmt->fetch()){
$rtype = array();
$rtype['type'] = "date";
$rtype['date'] = date_format (new DateTime($res['dateadded']), 'M jS, Y');
$rtype[] = $res;
$result[] = $rtype;
}
What I got as result from query sql
array
(
[0] => Array
(
[type] => date
[date] => Dec 18th, 2019
[0] => Array
(
[id] => 1
[user_id] => 1
[status] => 1
[date_added] => 2019-12-18 13:44:30
[dateadded] => 2019-12-18
)
)
[1] => Array
(
[type] => date
[date] => Dec 20th, 2019
[0] => Array
(
[id] => 3
[user_id] => 2
[status] => 2
[date_added] => 2019-12-20 14:53:04
[dateadded] => 2019-12-20
)
)
[2] => Array
(
[type] => date
[date] => Dec 29th, 2019
[0] => Array
(
[id] => 5
[user_id] => 3
[status] => 0
[date_added] => 2019-12-29 00:39:21
[dateadded] => 2019-12-29
)
)
)
There is some data that is not show as result in the same date.
What I want to show is like this.
Array
(
[0] => Array
(
[type] => date
[date] => Dec 18th, 2019
)
[1] => Array
(
[id] => 2
[user_id] => 1
[status] => 1
[date_added] => 2019-12-18 13:44:30
)
[2] => Array
(
[type] => date
[date] => Dec 20th, 2019
)
[3] => Array
(
[id] => 1
[user_id] => 1
[status] => 0
[date_added] => 2019-12-20 14:53:04
)
[4] => Array
(
[id] => 3
[user_id] => 1
[status] => 0
[date_added] => 2019-12-20 14:53:04
)
)
The result is become an array like that with group by date (day).
How to get this result?
Thanks for helping me.

Answer 1

You need to set $group_date to the value of $res['dateadded'] so you can tell when the date changes. There's no need to use substr(), since dateadded just contains the date without a time.
You should push $res onto $result, not $rtype.
$group_date = "";
$group = array();
$stmt = $conn->prepare("
SELECT *,date(date_added) as dateadded
FROM rr
ORDER BY dateadded
");
$stmt->execute();
$stmt->setFetchMode(PDO::FETCH_ASSOC);
while ($res = $stmt->fetch()){
$rtype = array();
if ($group_date !== $res["dateadded"]) {
$rtype['type'] = "date";
$rtype['date'] = date_format (new DateTime($res['dateadded']), 'M jS, Y');
$result[] = $rtype;
$group_date = $res["dateadded"];
}
$result[] = $res;
}