thinkphp增加sitemap.txt百度站点地图 txt格式示例PHP代码

在后台发布产品或文章时,自动更新站点地图.因为更新频繁,所以设置了数量

				//更新站点地图 
				//各级分类页
				$list =M($mydbtype)->field('id,retype,toptype')->limit(100)->order('id desc')->select();
				$urls='';
				foreach($list as $vo ){
					$cpid='';//三级分类网址为123.cn/?a=cp3&id=111
					if($vo['toptype']>5){$cpid=3;}
						elseif($vo['toptype']==5){$cpid=2;;}else{$cpid=1;}
             $urls.='http://www.123.cn/?a=cp'.$cpid.'&id='.$vo['id']."\n";
				}		
				//产品页
				$list2 =M($mydb)->field('id,type')->limit(300)->order('id desc')->select();
					foreach($list2 as $vo ){
             $urls.='http://www.123.cn/?a=cpinfo&id='.$vo['id']."\n";
				}
				//文章
				$list2 =M('content')->field('id,type')->limit(10)->order('id desc')->select();
					foreach($list2 as $vo ){
             $urls.='http://www.123.cn/?a=nrinfo&id='.$vo['id']."\n";
				}
            $fileUrl = RUNTIME_PATH.'sitemap.txt';
            file_put_contents($fileUrl,$urls);
				更新站点地图
                $this->success('产品添加成功!',U('clist'));