為什么代碼在 class類下就實現不了遞歸呢？
????private?$tree?=?[];
????
????public?function?diggn($pid=0,$span?=?0){
????????$span?+=?2;
????????$sql?=?"SELECT?*?from?`car_deepclassify`?where?`pid`?=?{$pid}?order?by?`createtime`?desc";
????????$results?=?$this->db->query($sql)->result_array();
????????//?var_dump($_POST);exit;
????????foreach?($results?as?$key?=>?$result)?{
????????????//?$result['catename']?=?
????????????$send?=?$this->db->where('id',$result['id'])->get('car_deepclassify')->row_array();
????????????$send['catename']?=?str_repeat(' ',$span).'|--'.$result['catename'];
????????????$this->tree[]?=?$send;
????????????$this->diggn($result['id'],$span);
????????}
????}
????public?function?diguiceshi(){
????????$this->diggn();
????????echo?'<pre>';
????????print_r($this->tree);
????????echo?'</pre>';
????}像老師那樣為啥實現不了 ，只能這樣實現呢？？？（框架ci）
2018-04-08
在框架里面只能寫入方法里再調用??！講師那個是基本的php文件操作格式
class>public>function>obj