我需要通过getNotifications函数中的值’start_date’DESC顺序对通知数组进行排序:
$posts_id_arr = getPoststIds($conn);
foreach ($posts_id_arr as $key => $val) {
$total_arr[$key] = [
'notification' => getNotifications($val['post_id'], $user_id, $conn)
];
}
$response_array = array('data' => $total_arr, 'more things' => $more_array);
echo json_encode($response_array);
现在由于foreach循环,订单是post id.
data {
notification:
[
{
post_id: “1",
start_date: "2016-10-10 08:00:00",
},
{
post_id: “1",
start_date: "2016-10-10 12:00:00",
}
],
notification:
[
post_id: “2",
start_date: "2016-10-10 09:00:00",
},
{
post_id: “2",
start_date: "2016-10-10 13:00:00",
}
]
}
我需要它是1:08:00,2:09:00,1:12:00,2:13:00