Question

Array
(
    [0] => Array
        (
            [count] => 9
            [slug] => concediat-reangajat
        )

    [1] => Array
        (
            [count] => 7
            [slug] => salarii-5togo
        )

    [2] => Array
        (
            [count] => 10
            [slug] => piata-fortei-munca
        )

    [3] => Array
        (
            [count] => 3
            [slug] => productivitate-angajati
        )

    [4] => Array
        (
            [count] => 1
            [slug] => stocare-date
        )

    [5] => Array
        (
            [count] => 4
            [slug] => infrastructura-leadership
        )

    [6] => Array
        (
            [count] => 2
            [slug] => airbnb-uber
        )

    [7] => Array
        (
            [count] => 5
            [slug] => salarii-productivitate
        )

    [8] => Array
        (
            [count] => 2
            [slug] => ceo-resurse-umane
        )

    [9] => Array
        (
            [count] => 3
            [slug] => hr-ceo
        )

    [10] => Array
        (
            [count] => 1
            [slug] => burnout-tratament
        )

    [11] => Array
        (
            [count] => 1
            [slug] => angajati-vanzarea-afacerii
        )

    [12] => Array
        (
            [count] => 1
            [slug] => job-linkedin
        )

    [13] => Array
        (
            [count] => 1
            [slug] => primul-faliment
        )

    [14] => Array
        (
            [count] => 3
            [slug] => salariu-mic
        )

    [15] => Array
        (
            [count] => 1
            [slug] => varsta-programatori
        )

)


i want to sort this array based on decending order of count

此数组包含数据数组计数和一个子变量我想根据计数的降序对整个数组进行排序我该如何分类..任何人都可以帮助我我试过usort，ksort等编程新手没有解决方案请帮我我试图解决但它没有工作有人可以解决吗？

Answer 1

带有回调的

usort将为您服务。

usort($array, function($a, $b) {
    return $b['count'] - $a['count']; # $a['count'] - $b['count']; will sort asc
});

工作演示： https://3v4l.org/SUa2F

或者简单地使用arsort($array);

工作演示： https://3v4l.org/bnWuo

Answer 2

按计数降序反向排序（对于相似计数，名称则升序）：

<?php

$items =
[
    ['count'=>2, 'name' => 'Janitor'],
    ['count'=>5, 'name' => 'Plumber'],
    ['count'=>1, 'name' => 'Scrubber'],
    ['count'=>3, 'name' => 'Winkle Picker'],
    ['count'=>3, 'name' => 'Window Cleaner']
];

usort($items, function($a, $b) {
    $compare = $b['count'] <=> $a['count'];
    if($compare == 0)
        $compare = $a['name'] <=> $b['name'];

    return $compare;
});

var_export($items);

输出：

array (
    0 => 
    array (
      'count' => 5,
      'name' => 'Plumber',
    ),
    1 => 
    array (
      'count' => 3,
      'name' => 'Window Cleaner',
    ),
    2 => 
    array (
      'count' => 3,
      'name' => 'Winkle Picker',
    ),
    3 => 
    array (
      'count' => 2,
      'name' => 'Janitor',
    ),
    4 => 
    array (
      'count' => 1,
      'name' => 'Scrubber',
    ),
  )

我想在php中对数组进行排序

2 个答案: