PHP数组递归排序实现方法示例
这篇文章主要介绍了PHP数组递归排序实现方法,结合实例形式分析了php基于递归算法针对特定key对数组进行排序的相关操作技巧,需要的朋友可以参考下。
本文实例讲述了PHP数组递归排序实现方法，分享给大家供大家参考，具体如下：
- /**
- * 递归根据特定key对数组排序
- * @param $data
- * @param string $orderKey
- * @param string $sonKey
- * @param int $orderBy
- * @return mixed
- */
- function recursion_orderby($data, $orderKey = 'order', $sonKey = 'children', $orderBy = SORT_ASC)
- {
- $func = function ($value) use ($sonKey, $orderKey, $orderBy) {
- if (isset($value[$sonKey]) && is_array($value[$sonKey])) {
- $value[$sonKey] = recursion_orderby($value[$sonKey], $orderKey, $sonKey, $orderBy);
- }
- return $value;
- };
- return array_orderby(array_map($func, $data), $orderKey, $orderBy);
- }
- $a = [
- [
- 'order' => 0,
- ],
- [
- 'order' => -1,
- 'children' => [
- [
- 'order' => 0,
- ],
- [
- 'order' => -2,
- 'children' => [
- ['order' => 0],
- ['order' => -1],
- ['order' => 1],
- ],
- ],
- ],
- ],
- [
- 'order' => 2,
- ],
- ];
- var_dump(recursion_orderby($a));
- /**
- * 输出：
- array(3) {
- [0] =>
- array(2) {
- 'order' =>
- int(-1)
- 'children' =>
- array(2) {
- [0] =>
- array(2) {
- 'order' =>
- int(-2)
- 'children' =>
- array(3) {
- [0] =>
- array(1) {
- 'order' =>
- int(-1)
- }
- [1] =>
- array(1) {
- 'order' =>
- int(0)
- }
- [2] =>
- array(1) {
- 'order' =>
- int(1)
- }
- }
- }
- [1] =>
- array(1) {
- 'order' =>
- int(0)
- }
- }
- }
- [1] =>
- array(1) {
- 'order' =>
- int(0)
- }
- [2] =>
- array(1) {
- 'order' =>
- int(2)
- }
- }
- */