curl 抓取yahoo boss 搜索结果

编写curl类，进行网页内容抓取

class CurlUtil
{
    private $curl;
    private $timeout = 10;

    /**
     * 初始化curl对象
     */
    public function __construct()
    {
        $this->curl = curl_init();
        curl_setopt($this->curl, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($this->curl, CURLOPT_USERAGENT, "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)");
        curl_setopt($this->curl, CURLOPT_HEADER, false); //设定是否显示头信息
        curl_setopt($this->curl, CURLOPT_NOBODY, false); //设定是否输出页面内容
        curl_setopt($this->curl, CURLOPT_CONNECTTIMEOUT, $this->timeout);
        curl_setopt($this->curl, CURLOPT_FOLLOWLOCATION, true);
        curl_setopt($this->curl, CURLOPT_AUTOREFERER, true);
    }

    /**
     * 注销函数 关闭curl对象
     */
    public function __destruct()
    {
        curl_close($this->curl);
    }

    /**
     * 获取网页的内容
     */
    public function getWebPageContent($url)
    {
        curl_setopt($this->curl, CURLOPT_URL, $url);
        return curl_exec($this->curl);
    }
}

创建curl对象

$CurlUtil = new CurlUtil();  

抓取yahoo搜索结果

function  getYahooSearch(CurlUtil $curl, $key)
{
    $key = urlencode($key);
    $searchUrl = "http://boss.yahooapis.com/ysearch/web/v1/$key?appid=你的雅虎appid&lang=tzh&region=hk&abstract=long&count=20&format=json&start=0&count=10";
  
    $josnStr = $curl->getWebPageContent($searchUrl);
    $searchDataInfo = json_decode($josnStr, true);
    $searchData = $searchDataInfo['ysearchresponse']['resultset_web'];

    $returnArray = array();
    if (!empty($searchData)) {
        foreach ($searchData as $data) {
            $returnArray[] = array("url" => $data['url'], "date" => $data['date'], 'title' => strip_tags($data['title']), 'description' => strip_tags($data['abstract']));
        }
    }
    return $returnArray;
}

测试结果

var_dump(getYahooSearch($CurlUtil, "百度"));