[英]How can I sort an array stating in a given number
First of all I am new in php.首先,我是 php 的新手。 I need help to sort an array.我需要帮助来对数组进行排序。
I have an array of ID's and zip codes like this:我有一组 ID 和 zip 代码,如下所示:
Array (
[2286] => 3150-259
[2284] => 3040-256
[2282] => 5430-659
[2280] => 2560-270
[2278] => 3740-271
[2276] => 2495-401 ... and so on
)
Now I have a number lets say '2900' I would like to sort my array from the closest number (2900) to the most distant.现在我有一个数字让我们说“2900”我想将我的数组从最近的数字(2900)排序到最远的数字。
Example: the number is 2900. So the array should sort like this:示例:数字是 2900。所以数组应该像这样排序:
Array (
[2284] => 3040-256
[2286] => 3150-259
[2280] => 2560-270
[2276] => 2495-401
[2282] => 5430-659 ... and so on
Can someone help me?有人能帮我吗?
Thank you谢谢
I guess, you can use function uksort in next way:我想,你可以使用 function uksort在下一个方式:
<?php
$arr = [
2286 => "3150-259",
2284 => "3040-256",
2282 => "5430-659",
2280 => "2560-270",
2278 => "3740-271",
2276 => "2495-401",
];
$n = 2900;
uksort($arr, function ($a, $b) use ($n) {
return (abs($a-$n) >= abs($b-$n)) ? 1 : -1;
});
var_export($arr);
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