這是我的二維數組:保持陣列鍵,在排序二維數組
$a = array(
'6' => array(10, 5),
'5' => array(20, 7),
'40' => array(15, 9)
);
我可以array_multisort
簡單地對它進行排序:
foreach ($a as $k => $r) {
$keys[$k] = $r[1];
}
array_multisort($keys, SORT_DESC, $a);
,但它清除鍵( '6', '5' ,'40'):
Array
(
[0] => Array
(
[0] => 15
[1] => 9
)
[1] => Array
(
[0] => 20
[1] => 7
)
[2] => Array
(
[0] => 10
[1] => 5
)
)
array_multisort
是否有任何參數保持數組鍵?
你想的按鍵排序?像40,6,5 –
@ W.Kristianto:不,我想排序數組。但我想保留鍵也不想用數組數字鍵替換它們(從0開始) – mrdaliri