这篇文章主要介绍了PHPCrawl爬虫库实现抓取酷狗歌单的方法,涉及PHPCrawl爬虫库的使用及正则匹配相关操作技巧,需要的朋友可以参考下
本文实例讲述了PHPCrawl爬虫库实现抓取酷狗歌单的方法。分享给大家供大家参考,具体如下:
本人看了网络爬虫相关的视频后,手痒痒,想爬点什么。最近Facebook上表情包大战很激烈,就想着把所有表情包都爬下来,却一时没有找到合适的VPN,因此把酷狗最近一月精选歌曲和简单介绍抓取到本地。代码写得有点乱,自己不是很满意,并不想放上来丢人现眼。不过转念一想,这好歹是自己第一次爬虫,于是...就有了如下不堪入目的代码~~~(由于抓取的数据量较小,所以没有考虑多进程什么的,不过我看了一下PHPCrawl的文档,发现PHPCrawl库已经把我能想到的功能都封装好了,实现起来很方便)
").
if (PHP_SAPI == "cli") $lb = "\n";
else $lb = "
";
$url = $DocInfo->url;
$pat = "/http:\/\/www\.kugou\.com\/yy\/special\/single\/\d+\.html/";
if(preg_match($pat,$url) > 0){
$this->parseSonglist($DocInfo);
}
flush();
}
public function parseSonglist($DocInfo){
$content = $DocInfo->content;
$songlistArr = array();
$songlistArr['raw_url'] = $DocInfo->url;
//解析歌曲介绍
$matches = array();
$pat = "/
名称:<\/span>([^(
0){
$songlistArr['title'] = $matches[1];
}else{
$songlistArr['title'] = '';
}
//解析歌曲
$pat = "/$song_title));
}
echo "";
print_r($songlistArr);
echo "
";
}
}
$crawler = new MyCrawler();
// URL to crawl
$start_url="http://www.kugou.com/yy/special/index/1-0-2.html";
$crawler->setURL($start_url);
// Only receive content of files with content-type "text/html"
$crawler->addContentTypeReceiveRule("#text/html#");
//链接扩展
$crawler->addURLFollowRule("#http://www\.kugou\.com/yy/special/single/\d+\.html$# i");
$crawler->addURLFollowRule("#http://www.kugou\.com/yy/special/index/\d+-\d+-2\.html$# i");
// Store and send cookie-data like a browser does
$crawler->enableCookieHandling(true);
// Set the traffic-limit to 1 MB(1000 * 1024) (in bytes,// for testing we dont want to "suck" the whole site)
//爬取大小无限制
$crawler->setTrafficLimit(0);
// Thats enough,now here we go
$crawler->go();
// At the end,after the process is finished,we print a short
// report (see method getProcessReport() for more information)
$report = $crawler->getProcessReport();
if (PHP_SAPI == "cli") $lb = "\n";
else $lb = "
";
echo "Summary:".$lb;
echo "Links followed: ".$report->links_followed.$lb;
echo "Documents received: ".$report->files_received.$lb;
echo "Bytes received: ".$report->bytes_received." bytes".$lb;
echo "Process runtime: ".$report->process_runtime." sec".$lb;
?>
PS:这里再为大家提供2款非常方便的正则表达式工具供大家参考使用:
JavaScript正则表达式在线测试工具:
正则表达式在线生成工具:
更多关于PHP相关内容感兴趣的读者可查看本站专题:《》、《》、《》、《》、《》、《》、《》、《》及《》
希望本文所述对大家PHP程序设计有所帮助。