массивы — сортировка элементов по частоте в переполнении стека
Входные данные:
$result = Array
(
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "y",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "x",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "y",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "y",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "y",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "x",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "y",
),
Array
(
"name" => "ლუკა ქურასბედიანი",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "z",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "z",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "x",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "z",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "x",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "x",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "x",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "x",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "x",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "x",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "x",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "x",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "z",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "y",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "y",
),
Array(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "z",
),
);
Я хочу отсортировать элементы по частоте (по «parrent_club_hash_id»).
Есть 11-x 7-y а также 5-z так что я хочу вывод, как это:
$result = Array
(
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "x",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "x",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "x",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "x",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "x",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "x",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "x",
),
Array
(
"name" => "ლუკა ქურასბედიანი",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "x",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "x",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "x",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "x",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "y",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "y",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "y",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "y",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "y",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "y",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "y",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "z",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "z",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "z",
),
Array
(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "z",
),
Array(
"name" => "",
"squad_member_hash_id" => "",
"parrent_club_hash_id" => "z",
),
);
Решение
Сначала получите частоты ваших значений:
$values = array_count_values(array_column($result, 'parrent_club_hash_id'));
Затем сортируйте по этим частотам, используя пользовательскую сортировку:
usort($result, function ($x, $y) use ($values) {
// $y is first because you need descending sort
return $values[$y["parrent_club_hash_id"]] - $values[$x["parrent_club_hash_id"]];
});
Пример: http://sandbox.onlinephpfunctions.com/code/6265192e677641afbc21e899d97f252c14b5402f
Другие решения
Других решений пока нет …