PHP爬取itunes页面信息

 

实验目的：通过PHP curl爬取某个package 的itunes页面数据，格式化输出。

 

实验步骤：构造curl (demo写于laravel，不同框架的自行更改)

 

//$url是一条合法的ITunes链接

public static function creativeGet($url,$post_data=false,$ignore_ssl=true, $dataType='text')
{
    $curl = curl_init();
    curl_setopt($curl, CURLOPT_USERAGENT, 'Chrome 42.0.2311.135 Pentamob');
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($curl, CURLOPT_URL, $url);

    if($ignore_ssl){
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); //信任任何证书
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 0); // 检查证书中是否设置域名,0不验证
    }

    $proxy = config('app.proxy');   //我的例子是'proxy' => ['host' => '127.0.0.1', 'port' => '1080', 'type' => CURLPROXY_SOCKS5],

    if($proxy){
        curl_setopt($curl, CURLOPT_HTTPPROXYTUNNEL, true);
        curl_setopt($curl, CURLOPT_PROXYAUTH, CURLAUTH_BASIC);
        curl_setopt($curl, CURLOPT_PROXYTYPE, $proxy['type']);
        curl_setopt($curl, CURLOPT_PROXY, $proxy['host']);
        curl_setopt($curl, CURLOPT_PROXYPORT, $proxy['port']);
     
    }

    if($post_data){
        curl_setopt($curl, CURLOPT_POST, 1);
        curl_setopt($curl, CURLOPT_POSTFIELDS, $post_data);
    }

    $data = curl_exec($curl);
    $status = curl_getinfo($curl);
    $error_info = [ //组装错误信息
        'error_no'   => curl_errno($curl),
        'error_info' => curl_getinfo($curl),
        'error_msg'  => curl_error($curl),
        'result'     => $data
    ];

    curl_close($curl);
    if (isset($status[ 'http_code' ]) && $status[ 'http_code' ] == 200) {
        if ($dataType == 'json') {
            $data = json_decode($data, true);
        }
        return $data;
    } else {
        return $error_info;
    }
}

构造格式化输出文件：

　　public static function dealiTune($package_name = '')
　　{
　　　　//我测试的包名是 297606951

   　　 if (!$package_name) {
   　　     return 'package_name is not null';
  　　  }

  　　  $url = 'https://itunes.apple.com/us/lookup?id='.$package_name;
  　　  $html_doc = self::creativeGet($url);
  　　  $html_json_data = json_decode($html_doc, true);

  　　  $result = [];
  　　  if ($html_json_data['resultCount'] < 1) {
   　　     return 'This '.$package_name.'name was not found';
   　　 }
  　　  $result['name'] = $html_json_data['results'][0]['trackCensoredName'];
  　　  $result['icon'] = $html_json_data['results'][0]['artworkUrl100'];
  　　  $result['description'] = $html_json_data['results'][0]['description'];
  　　  $result['min_os_vs'] = $html_json_data['results'][0]['minimumOsVersion'];
  　　  $result['category'] = $html_json_data['results'][0]['primaryGenreName'];

   　　 return response()->json($result);  //laravel的response()->json

　　}

实验结果：

　　{
　　　　"offer_name": "Amazon - Shopping made easy",
　　　　"icon": "https://is3-ssl.mzstatic.com/image/thumb/Purple118/v4/43/5e/87/435e87d8-d948-1678-7027-21f1570a1b41/source/100x100bb.jpg",
　　　　"des": "International Shopping \nBrowse.............",
　　　　"min_os_vs": "9.0",
　　　　"category": "Shopping"
　　}

写在最后：这样就可以简单的通过curl 抓取iTunes上APP的数据，下一篇将会实现goole store的抓取。

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