PHP遞歸實現無限極分類

摘要

今天在編碼的時候要用到二級的欄目分類，所以順便就把無限極分類給整理了一下，采用的是遞歸方法

    //實現無限級分類public function getTree(){$categorys = Category::all();return $this->makeTree($categorys, 'cate_id', 'cate_pid', 'cate_name', 0);}public function makeTree($list, $pk = 'id', $pid = 'pid', $child = 'child', $root = 0){$tree = array();foreach ($list as $key => $val) {if ($val[$pid] == $root) {//獲取當前$pid所有子類unset($list[$key]);if (!empty($list)) {$tmpChild = self::makeTree($list, $pk, $pid, $child, $val[$pk]);if (!empty($tmpChild)) {$val['_' . $child] = $tmpChild;}}$tree[] = $val;}}return $tree;}

效果如下