tp框架写了个方法获取顶级分类return结果就是null,在辅助函数都能打印出结果。
- PHP code
<!---ecms Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> //通过id_category获取一级分类id function getParentInfo(){ $id_category=Tools::getValue('id_category'); <strong style="color:transparent">来2源gaodaima#com搞(代@码&网</strong><label>搞gaodaima代码</label> $cate_info=$this->category_obj->where('id_category='.$id_category)->find(); //不是顶级 if($cate_info['pid']!=0){ $result=$this->getFirst($id_category); }else{ $result=$cate_info; } dump($result); // dump('顶级类是:'.$result['id_category'].':'.$result['name'].'<br />'); } function getFirst($id_category){ $cate_info=$this->category_obj->where('id_category='.$id_category)->find(); echo $this->category_obj->getLastSql().'<br />'; if($cate_info['pid']!=0){ $this->getFirst($cate_info['pid']); }else{ dump($cate_info); return $cate_info; } }
我拿分类id=115测试结果是在下面getFirst能打印出结果也是想要的结果,但是:return $cate_info给$result时候就是NULL了
求高手指点!!!
——解决方案——————–
function getFirst($id_category){
$cate_info=$this->category_obj->where(‘id_category=’.$id_category)->find();
echo $this->category_obj->getLastSql().’
‘;
if($cate_info[‘pid’]!=0){
$this->getFirst($cate_info[‘pid’]);//这里没有接住返回的数据
}else{
dump($cate_info);
return $cate_info;
}
}
——解决方案——————–
- PHP code
function getFirst($id_category){ $cate_info=$this->category_obj->where('id_category='.$id_category)->find(); echo $this->category_obj->getLastSql().'
'; if($cate_info['pid']!=0){ $cate_info =$this->getFirst($cate_info['pid']); } return $cate_info; }
------解决方案--------------------
要有返回值!