Question

这是数组，

<input type="range" name="slider-1" id="slider-1" min="1" max="9951" value="1" step="50">

<div data-role="rangeslider" data-track-theme="b" data-theme="a">
  <input type="range" name="range1" id="range1" disabled="disabled" min="0" max="10">
  <input type="range" name="range2" id="range2" disabled="disabled" value="10">
</div>

大多数usort示例只是2级维度数组。我无法找到任何3级的例子。

在这种情况下，我想排序最先显示的最小点。 Item-A将是第一个，Item-B将是第二个。

Answer 1

试试这个：

  function sort_2d_desc($array, $key) {

    usort($array, function($a, $b) use ($key) {
        return strnatcasecmp($b[$key], $a[$key]);
    });

    return $array;
  }

       $a = [];
    foreach($arr as $key => $val){
        $a[$key] = $this->sort_2d_desc($val['RedeemOptions'], 'Points');
    }

    $newArr = [];
    foreach($arr as $key => $val){

        $newArr[] = ['IdRedeemProduct' => $val['IdRedeemProduct'], 'RedeemOptions' => $a, 'ProductType' => $val['ProductType']];
    }



    print_r($newArr);

Answer 2

foreach ($filteredResults as $key => $row)
                    {
                        foreach ($row['RedeemOptions'] as $key2 => $option) {
                            $vc_array_name[$key] = $option['Points'];
                        }
                    }

array_multisort($vc_array_name, SORT_ASC, $filteredResults);

这是有效的......

在PHP中按值对3级多维数组进行排序

2 个答案: