PHPCrawl爬虫库抓取酷狗歌单

爬虫抓取酷狗最近一月精选歌曲。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

<?php
header("Content-type:text/html;charset=utf-8");
// It may take a whils to crawl a site ...
set_time_limit(10000);

include("libs/PHPCrawler.class.php");
class MyCrawler extends PHPCrawler {
    function handleDocumentInfo($DocInfo) {
        // Just detect linebreak for output (" " in CLI-mode, otherwise "<br>").
        if (PHP_SAPI == "cli") $lb = " ";
        else $lb = "<br />";
        
        $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 = "/<span>名称：</span>([^(<br)]+)<br/";
        $ret = preg_match($pat,$content,$matches);
        if($ret>0){
            $songlistArr["title"] = $matches[1];
        }else{
            $songlistArr["title"] = "";
        }
        //解析歌曲
        $pat = "/<a title="([^"]+)" hidefocus="/";
        $matches = array();
        preg_match_all($pat,$content,$matches);
        $songlistArr["songs"] = array();
        for($i = 0;$i < count($matches[0]);$i++){
            $song_title = $matches[1][$i];
            array_push($songlistArr["songs"],array("title"=>$song_title));
        }
        echo "<pre>";
        print_r($songlistArr);
        echo "</pre>";
        }
    }
$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 = " ";
else $lb = "<br />";
    
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; 
?>