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
<!--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'); $cate_info=$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 $this->category_obj->getLastSql().'<br/>'; if($cate_info['pid']!=0){ $cate_info =$this->getFirst($cate_info['pid']); } return $cate_info; }<br><font color="#e78608">------解决方案--------------------</font><br>要有返回值!<div class="clear">
</div>










