本文實(shí)例講述了PHPCrawl爬蟲庫(kù)實(shí)現(xiàn)抓取酷狗歌單的方法。分享給大家供大家參考,具體如下:
本人看了網(wǎng)絡(luò)爬蟲相關(guān)的視頻后,手癢癢,想爬點(diǎn)什么。最近Facebook上表情包大戰(zhàn)很激烈,就想著把所有表情包都爬下來(lái),卻一時(shí)沒有找到合適的VPN,因此把酷狗最近一月精選歌曲和簡(jiǎn)單介紹抓取到本地。代碼寫得有點(diǎn)亂,自己不是很滿意,并不想放上來(lái)丟人現(xiàn)眼。不過(guò)轉(zhuǎn)念一想,這好歹是自己第一次爬蟲,于是...就有了如下不堪入目的代碼~~~(由于抓取的數(shù)據(jù)量較小,所以沒有考慮多進(jìn)程什么的,不過(guò)我看了一下PHPCrawl的文檔,發(fā)現(xiàn)PHPCrawl庫(kù)已經(jīng)把我能想到的功能都封裝好了,實(shí)現(xiàn)起來(lái)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 ("\n" in CLI-mode, otherwise "br>"). if (PHP_SAPI == "cli") $lb = "\n"; 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; //解析歌曲介紹 $matches = array(); $pat = "/span>名稱:\/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#"); //鏈接擴(kuò)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) //爬取大小無(wú)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 $lb = "br />"; echo "Summary:".$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; ?>
PS:這里再為大家提供2款非常方便的正則表達(dá)式工具供大家參考使用:
JavaScript正則表達(dá)式在線測(cè)試工具:
http://tools.jb51.net/regex/javascript
正則表達(dá)式在線生成工具:
http://tools.jb51.net/regex/create_reg
更多關(guān)于PHP相關(guān)內(nèi)容感興趣的讀者可查看本站專題:《php正則表達(dá)式用法總結(jié)》、《PHP數(shù)組(Array)操作技巧大全》、《PHP基本語(yǔ)法入門教程》、《PHP運(yùn)算與運(yùn)算符用法總結(jié)》、《php面向?qū)ο蟪绦蛟O(shè)計(jì)入門教程》、《PHP網(wǎng)絡(luò)編程技巧總結(jié)》、《php字符串(string)用法總結(jié)》、《php+mysql數(shù)據(jù)庫(kù)操作入門教程》及《php常見數(shù)據(jù)庫(kù)操作技巧匯總》
希望本文所述對(duì)大家PHP程序設(shè)計(jì)有所幫助。
標(biāo)簽:定西 十堰 迪慶 樂山 佛山 南寧 六安 海南
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