按数字降序排列数组

Question

我从我做的测验中得到了结果，结果是数字（总计：44/33/22/11，例如 A = 11，B = 44，C = 33，D = 22）我希望屏幕上打印的结果按降序排列，首先是最高 (44)，然后是第二、第三，然后是最低 (11)。成功了（post 另一个 post 一个小时前有人帮助了我）问题是我还有 2 个参数。

例如：

A - 40 - 90 B - 29 - 91 C - 55 - 92 D - 90 - 93

现在我希望它在屏幕上显示为 D/C/A/B 按第二个参数（$percent(90/55/29/40)

降序

代码：

               $percentA = $totalA * 4;
                 $percentB = $totalB * 4;
                 $percentC = $totalC * 4;
                 $percentD = $totalD * 4;

                 $letters    = ['A', 'B', 'C', 'D'];
                 $temp_array = [];

                $results = array(
                    'A' => ['percent' => $percentA, 'value'=>'90'],
                    'B' => ['percent' => $percentB, 'value'=>'91'],
                    'C' => ['percent' => $percentC, 'value'=>'92'],
                    'D' => ['percent' => $percentD, 'value'=>'93']
                );
                //rsort($results);
                for($i = 0; $i < count($results); $i++) {
                    $name    = $letters[$i];
                    $percent = $results[$letters[$i]]['percent'];
                    $value   = $results[$letters[$i]]['value'];

                    $new_array = ['name' => $name, 'percent' => $percent ,'value'=>$value];

                    array_push($temp_array, $new_array);
                }

It sorts but it sorts on the key of the array (3/2/1/0) I want to to sort on percent (10/20/30/40 for example)

                krsort($temp_array);


                foreach ($temp_array as $key => $val) {
                }

Answer 1

使用排序：

usort($yourArray, function($a, $b) {
    if ($a['value'] == $b['value']) {
        return 0;
    }
    return ($a['value'] < $b['value']) ? -1 : 1;
});

按数字降序排列数组

Sort array with numbers descending

php

sorting

ksort