function arPro($data,$res=array(),$pid=‘0‘,$level=‘0‘){  foreach ($data as $k => $v){    if($v[‘comment_parent‘]==$pid){      $res[$v[‘id‘]][‘info‘]=$v;      if($level!=‘0‘){        if($v[‘level‘]==$level){          $child=null;        }        else{          $child=arPro($data,array(),$v[‘comment_id‘],$level+1);        }        $res[$v[‘id‘]][‘child‘]=$child;      }      else{        $child=arPro($data,array(),$v[‘comment_id‘]);        if($child==‘‘||$child==null){            $res[$v[‘id‘]][‘child‘]=null;        }        else{            $res[$v[‘id‘]][‘child‘]=$child;        }      }    }  }  return $res;}