-
无限极分类
- ?php
- /*
- * 无限极分类 类
- */
- header("Content-Type: text/html; charset=UTF-8");
- Class Category {
- //组合一维数组
- Static Public function unlimitedForLevel ($cate, $html = '--', $pid = 0, $level = 0) {
- $arr = array();
- foreach ($cate as $k => $v) {
- if ($v['pid'] == $pid) {
- $v['level'] = $level + 1;
- $v['html'] = str_repeat($html, $level);
- $arr[] = $v;
- $arr = array_merge($arr, self::unlimitedForLevel($cate, $html, $v['id'], $level + 1));
- }
- }
- return $arr;
- }
- //组合多维数组
- Static Public function unlimitedForLayer ($cate, $name = 'child', $pid = 0) {
- $arr = array();
- foreach ($cate as $v) {
- if ($v['pid'] == $pid) {
- $v[$name] = self::unlimitedForLayer($cate, $name, $v['id']);
- $arr[] = $v;
- }
- }
- return $arr;
- }
- //传递一个子分类ID返回所有的父级分类
- Static Public function getParents ($cate, $id) {
- $arr = array();
- foreach ($cate as $v) {
- if ($v['id'] == $id) {
- $arr[] = $v;
- $arr = array_merge(self::getParents($cate, $v['pid']), $arr);
- }
- }
- return $arr;
- }
- //传递一个父级分类ID返回所有子分类ID
- Static Public function getChildsId ($cate, $pid) {
- $arr = array();
- foreach ($cate as $v) {
- if ($v['pid'] == $pid) {
- $arr[] = $v['id'];
- $arr = array_merge($arr, self::getChildsId($cate, $v['id']));
- }
- }
- return $arr;
- }
- //传递一个父级分类ID返回所有子分类
- Static Public function getChilds ($cate, $pid) {
- $arr = array();
- foreach ($cate as $v) {
- if ($v['pid'] == $pid) {
- $arr[] = $v;
- $arr = array_merge($arr, self::getChilds($cate, $v['id']));
- }
- }
- return $arr;
- }
- }
- $cate = array(
- 0 => array('id' => 1, 'pid' => 0, 'name' => '江西省'),
- 1 => array('id' => 2, 'pid' => 0, 'name' => '浙江省'),
- 2 => array('id' => 3, 'pid' => 1, 'name' => '上饶市'),
- 3 => array('id' => 4, 'pid' => 3, 'name' => '广丰县'),
- 4 => array('id' => 5, 'pid' => 2, 'name' => '杭州市'),
- 5 => array('id' => 6, 'pid' => 5, 'name' => '西湖'),
- 6 => array('id' => 7, 'pid' => 6, 'name' => '断桥'),
- );
- //print_r(Category::unlimitedForLevel($cate));
- print_r(Category::unlimitedForLayer($cate));
- //print_r(Category::getParents($cate,7));
- //print_r(Category::getChildsId($cate,2));
- //print_r(Category::getChilds($cate,2));
- // PHP交流群 278528223
- ?>
-
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原文地址:https://www.cnblogs.com/chuanqideya/p/6039922.html
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