array_push 或 array_unshift 多行到同一数组的顶部 PHP

array_push or array_unshift multiple rows to top of same array PHP

我有一个数组:

[0] => Array
    (
        [Id] => 1
        [Order] => 1
        [ContentGroupId] => 10
        [ContentGroupIsNew] => 0
 )

[1] => Array
    (
        [Id] => 2
        [Order] => 2
        [ContentGroupId] => 11
        [ContentGroupIsNew] => 0
 )
[2] => Array
    (
        [Id] => 3
        [Order] => 3
        [ContentGroupId] => 12
        [ContentGroupIsNew] => 1
 )
[3] => Array
    (
        [Id] => 4
        [Order] => 4
        [ContentGroupId] => 13
        [ContentGroupIsNew] => 1
 )
[4] => Array
    (
        [Id] => 5
        [Order] => 5
        [ContentGroupId] => 14
        [ContentGroupIsNew] => 0
 )

默认顺序是 [Order] 我想重新排序这个数组,以便它在顶部按 [ContentGroupIsNew] = 1 排序(如果存在,在这个示例中 2 确实存在),但是保持剩余元素的现有顺序。

如果我使用 usort 函数,我可以获得 [ContentGroupIsNew] = 1 但随后元素的其余部分似乎随机排序并且不符合原始 [Order] 值。

所以最终结果应该是这样的:

[0] => Array
    (
        [Id] => 3
        [Order] => 3
        [ContentGroupId] => 12
        [ContentGroupIsNew] => 1
 )

[1] => Array
    (
        [Id] => 4
        [Order] => 4
        [ContentGroupId] => 13
        [ContentGroupIsNew] => 1
 )
[2] => Array
    (
        [Id] => 1
        [Order] => 1
        [ContentGroupId] => 10
        [ContentGroupIsNew] => 0
 )
[3] => Array
    (
        [Id] => 2
        [Order] => 2
        [ContentGroupId] => 11
        [ContentGroupIsNew] => 0
 )
[4] => Array
    (
        [Id] => 5
        [Order] => 5
        [ContentGroupId] => 14
        [ContentGroupIsNew] => 0
 )

PHP代码:

function sort_array($b, $a) {
  return $a['ContentGroupIsNew'] - $b['ContentGroupIsNew'];
}

usort($array, 'sort_array');

请试试这个

   function myCmp($a, $b)
    {
      return strcmp($b["ContentGroupIsNew"], $a["ContentGroupIsNew"]);
    }

    uasort($array, "myCmp")

echo "<pre>"; print_r($array);
foreach ($data as $key => $row) {
    $return_fare[$key]  = $row['ContentGroupIsNew'];
    $one_way_fare[$key] = $row['Id'];
}


array_multisort($return_fare, SORT_DESC, $one_way_fare, SORT_ASC, $data);
print_r($data);

在这里找到了这个解决方案:PHP sort array by two field values