php - 根据段数对数组值进行排序

Question

我有一个 URL 数组

例如:

['support/maintenance', 'support/', 'support/faq/laminator']

如何根据段数对其进行排序？

预期结果:

['support/faq/maninator', 'support/maintenance, 'support/']

Answer 1

使用 arsort 以相反的顺序组织，然后使用 usort 按字符串大小排序。

<?php

$arr = ['support/maintenance', 'support/', 'support/faq/laminator'];

function sortOrder($currentValue, $nextValue) {
    $totalSegmentsOfTheCurrentIndex = count(preg_split('/\//', $currentValue, -1, PREG_SPLIT_NO_EMPTY));
    $totalSegmentsOfTheNextIndex  = count(preg_split('/\//', $nextValue, -1, PREG_SPLIT_NO_EMPTY));

    // The comparison function must return an integer less than, equal to, or greater than zero if the first argument is considered to be respectively less than, equal to, or greater than the second.
    return $totalSegmentsOfTheNextIndex - $totalSegmentsOfTheCurrentIndex;
}

usort($arr, 'sortOrder');

var_export($arr);