php递归实现无限级分类树

1.首先查出所有数据  就不列出查询过程。展示数据类型： 2. $data = sele_chil($results,0); function sele_chil($results, $pId){ $tree = ''; foreach($results as $k => $v){   if($v['PARENTID'] == $pId){    $v['children'] = sele_chi

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