PHP - 将关联数组与自定义列表进行比较并排序以匹配

问题描述：

I need to sort an array in a particular order, sorting by the keys. I know I need to do something like the below but have tried many different variations of the it and cannot get the result I need.

Can anyone help?

An example of the array is below and th results I am looking for for this would be: Connectivity | Contact Centres | Cloud & Hosting | Business Continuity

$solutions = Array ( [Business Continuity] => business-continuity [Connectivity] => connectivity [Cloud & Hosting] => cloud-hosting [Contact Centres] => contact-centres )

    function reorder_solutions($a, $b){
                    $custom = array('Lines & Calls', 'Mobile', 'Connectivity', 'Wifi', 'LAN', 'UC&C', 'Contact Centres', 'Cloud & Hosting', 'Managed Services', 'Security', 'Business Continuity');

                    foreach ($custom as $k => $v){
                        if ($k == $b) {
                            return 0;
                        }
                        return ($k < $b) ? -1 : 1;
                    }
                }

                uasort($solutions, "reorder_solutions");

我需要按特定顺序对数组进行排序，按键排序。我知道我需要做类似下面的事情，但尝试了很多不同的变体，无法得到我需要的结果。 p>

任何人都可以帮忙吗？ p>

下面是一个数组的例子，我正在寻找的结果是：连接性| 联络中心| 云与云主持| 业务连续性 p>

$ solutions = Array（[业务连续性] =＆gt;业务连续性 [连接] =＆gt;连接[云和托管] =＆gt ;云托管 [联络中心] =＆gt;联络中心） p> blockquote>

  function reorder_solutions（$ a，$ b）{
 $  custom = array（'Lines＆amp; Calls'，'Mobile'，'Connectivity'，'Wifi'，'LAN'，'UC＆amp; C'，'Contact Centers'，'Cloud＆amp; Hosting'，'Managed Services'，  '安全'，'业务连续性'）; 
 
 foreach（$ custom as $ k =＆gt; $ v）{
 if（$ k == $ b）{
 return 0; 
} 
 返回（$ k＆lt; $ b）？  -1：1; 
} 
} 
 
 uasort（$ solutions，“reorder_solutions”）; 
  code>  pre> 
  div>

答

Here's one way to do it:

// loop over the $custom array
foreach ($custom as $key) {

    // add each key found in $solutions into a $sorted array
    // (they'll be added in custom order)
    if (isset($solutions[$key])) {
        $sorted[$key] = $solutions[$key];

        // remove the item from $solutions after adding it to $sorted
        unset($solutions[$key]);
    }
}

// merge the $sorted array with any remaining items in $solutions
$solutions = array_merge($sorted, $solutions);

Another way:

// create an array using the values of $custom as keys with all empty values
$custom = array_fill_keys($custom, null);

// merge that array with $solutions (same keys will be overwritten with values
//  from $solutions, then remove the empty values with array_filter
$solutions = array_filter(array_merge($custom, $solutions));

You can make it a one-liner if you like.

$solutions = array_filter(array_merge(array_fill_keys($custom, null), $solutions));

PHP - 将关联数组与自定义列表进行比较并排序以匹配

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