一個簡單的資料採集，這裡用的方法是API資料採集

        //api地址，讀取文字
        $result = file_get_contents("https://feed.mix.sina.com.cn/api/roll/get?pageid=153&lid=2509&k=&num=50&page=1");

        if(!$result){
            die;
        }
         //json資料解析
        $result = json_decode($result,true);

        if(count($result['result']['data'])==0){
            die;
        }
        $test1 = 0;
        foreach($result['result']['data'] as $k=>$v){
            $sdata['add_time'] = $v['ctime'];
            $sdata['title'] = $v['title'];
            $sdata['pic'] = !empty($v['images'][0]['u']) ? $v['images'][0]['u'] : '';
            
            $sdata['source'] = $v['media_name'];
            
            $sdata['source_url'] = $v['url'];
            $sdata['content'] = $v['intro'];
            
            //存到redis裡
            $db = $redis->LPUSH('news',json_encode($sdata));
            $redis->expire('news',60);//設定失效時間[true | false] 單位：秒
        }