概要

PHPSimpleHtmlDomParserを用いたニコニコ生放送公式ランキングのスクレイピング

コード

OfficialRankingScraper.class.php

<?php

require_once("./simple_html_dom.php");

class OfficialRankingScraper
{
    const OFFICIAL_RANKING_URL = "http://live.nicovideo.jp/ranking";
    private $user,$official;
    public function __construct(){

    }

    public function getUser(){
        $this->makeUser();
        return $this->user;
    }

    public function getOfficial(){
        $this->makeOfficial();
        return $this->official;
    }

    private function makeUser(){
        $html = file_get_html(self::OFFICIAL_RANKING_URL);
        $stream_array = array();
        foreach($html->find('div[class=user clearfix spriteIcon ranking_video]') as $i => $element) {
            $rank           = ($i + 1);
            $community      = $element->find('span[class=comName]',0);
            $community_name = $community->plaintext;
            $community_url  = $community->find('a',0)->href;
            $tmp            = explode('/',$community_url);
            $community_id   = $tmp[4];
            $user           = $element->find('span[class=name]',0);
            $user_name      = $user->plaintext;
            $user_url       = $user->find('a',0)->href;
            $viewer         = $element->find('li[class="audience spriteIcon"]',0)->plaintext;
            $comment        = $element->find('li[class="coment spriteIcon"]',0)->plaintext;
            $title          = $element->find('span[class="video_title"]',0)->plaintext;
            $thumbnail      = $element->find('div[class="info"]',0)->find('img',0)->src;
            $stream_url     = $element->find('div[class="info"]',0)->find('a',0)->href;
            $stream_url     = "http://live.nicovideo.jp/".$stream_url;
            $active         = $element->find('span[class="score"]',0)->plaintext;

            $stream_array[] = array(
                'rank'           => $rank,
                'community_id'   => $community_id,
                'community_url'  => $community_url,
                'community_name' => $community_name,
                'user_name'      => $user_name,
                'user_url'       => $user_url,
                'viewer'         => $viewer,
                'comment'        => $comment,
                'title'          => $title,
                'thumbnail'      => $thumbnail,
                'stream_url'     => $stream_url,
                'active'         => $active
            );
        }
        $this->user = $stream_array;
    }

    private function makeOfficial(){
        $html = file_get_html(self::OFFICIAL_RANKING_URL);
        $stream_array = array();
        foreach($html->find('ul[class="active clearfix"] li') as $i => $element) {
            $rank           = ($i + 1);
            $viewer         = $element->find('div[class="audience spriteIcon"]',0)->plaintext;
            $comment        = $element->find('div[class="coment spriteIcon"]',0)->plaintext;
            $title          = $element->find('p a',0)->plaintext;
            $thumbnail      = $element->find('div[class="rankNumber"]',0)->find('img',0)->src;
            $stream_url     = $element->find('div[class="rankNumber"]',0)->find('a',0)->href;
            $stream_url     = "http://live.nicovideo.jp/".$stream_url;
            $stream_id      = $this->makeStreamId($stream_url);

            $stream_array[] = array(
                'rank'           => $rank,
                'viewer'         => $viewer,
                'comment'        => $comment,
                'title'          => $title,
                'thumbnail'      => $thumbnail,
                'stream_url'     => $stream_url,
                'stream_id'      => $stream_id
            );
        }
        $this->official = $stream_array;
    }

    private function makeStreamId($stream_url){
        $stream_id = "";
        $slash     = explode("/", $stream_url);
        $hatena    = explode("?",$slash[4]);
        $stream_id = $hatena[0];
        return $stream_id;
    }


}

?>

サンプルコード

sample.php


<?php
require_once("OfficialRankingScraper.class.php");

$scraper = new OfficialRankingScraper();
print_r($scraper->getOfficial());
print_r($scraper->getUser());


?>

結果

result