php的抓取

<?php
/**
 * Created by PhpStorm.
 * User: s
 * Date: 2018/11/6
 * Time: 18:14
 */

include "vendor/autoload.php";
//引入类
use QLQueryList;

class QueClassTwo
{
   protected $_pdo;
   public function __construct()
   {
       $this->_pdo = new  PDO("mysql:host=127.0.0.1;dbname=student","root","root");
   }
   public function getDate($url)
   {
       //设置采集规则
       $rules=[
           'title'=>['h3','text'],
           'url'=>['.juti_new>.juti_list>h3>a','href'],
           'img'=>['.ju_pic>a>img','src'],
           'content'=>['.juti_new>.juti_list>h3>a','href'],
           'addtime'=>['.ping03','text']
       ];
       $data = QueryList::Query($url,$rules)->data;
       $this->addData($data);
       return true;
   }
   //数据入库
    public function addData($data)
    {
        if(empty($data)) return false;
        $sql="insert into seven_17(title,url,img,content,addtime) VALUES ";
        foreach ($data as $k=>$v)
        {
            if(!empty($v['img']))
            {
                //名称按/分割后数组
                $imgname=explode('/',$v['img']);
                //根据数量最后一位获取图片名称
                $num=count($imgname);
                $name=$imgname[$num-1];
                //写入
                $imgdata=file_get_contents($v['img']);
                file_put_contents('./img/'.$name,$imgdata);
                $sql .="('{$v['title']}','{$v['url']}','{$v['img']}','{$v['content']}','{$v['addtime']}'),";
            }
        }
        $sql = substr($sql,0,-1);//除去sql语句后面的,号
        $this->_pdo->exec($sql);
        return true;
    }
}