如何根据特定值按降序对数组进行排序

Question

我有一系列新闻

Array
(
  [0] => Array
    (
        [news_published] => 1337192831
        [news_category] => 5
    )

  [1] => Array
    (
        [news_published] => 1334566743
        [news_category] => 5
    )

  [2] => Array
    (
        [news_published] => 1340092425
        [news_category] => 6
    )

  [3] => Array
    (
        [news_published] => 1339740173
        [news_category] => 6
    )

  [4] => Array
    (
        [news_published] => 1336148837
        [news_category] => 6
    )
)

我如何按降序对news_published进行排序....我试过'usort'但是无法找到正确的结果有人可以建议我吗？

Answer 1

试试这个 :

$arr  = your array;
$sort = array();
foreach($arr as $k=>$v) {
    $sort['news_published'][$k] = $v['news_published'];
}

array_multisort($sort['news_published'], SORT_DESC, $arr);

echo "<pre>";
print_r($arr);