Home Backend Development PHP Tutorial 请问 寻找PHP采集大量网页高效可行的方法

请问 寻找PHP采集大量网页高效可行的方法

Jun 13, 2016 pm 12:05 PM
curl header nbsp

请教 寻找PHP采集大量网页高效可行的方法

本帖最后由 oasisxp 于 2014-08-25 13:45:08 编辑 想用PHP的CURL采集虾米网的音乐信息。
但是很慢,采集到50个左右的时候就会停掉,然后网页卡住,第二次运行的时候就无法采集,应该是根据IP识别后,不允许采集了吧,所以基本上采集数据非常慢。
请问这种大数据的采集应该怎么做?
也有可能是我代码的问题。
以下是部分代码。
$j=0;<br />	//起始ID<br />	$id = 200000;<br />	//采集1000条<br />	//保存采集的数据<br />	$data = array();<br />	while($j<1000){<br />		$url = 'http://www.xiami.com/song/'.($id++);<br />		$ch = curl_init();<br />		$status = curl_getinfo($ch);<br />		///$status['redirect_url'] ;// 跳转到的新地址<br />		$header[]='Accept:text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8';<br />		$header[]='Accept-Encoding:gzip,deflate,sdch';<br />		$header[]='Accept-Language:zh-CN,zh;q=0.8';<br />		$header[]='Cache-Control:max-age=0';<br />		$header[]='Connection:keep-alive';<br />		$header[]='Cookie:_unsign_token=a35437bd35c221c09a0e6f564e17c225; __gads=ID=7fcc242f6fd63d77:T=1408774454:S=ALNI_Mae8MH6vL5z6q4NlGYzyqgD4jHeEg; bdshare_firstime=1408774454639; _xiamitoken=3541aab48832ba3ceb089de7f39b9b0f; pnm_cku822=211n%2BqZ9mgNqgJnCG0Zu8%2BzyLTPuc%2B7wbrff98%3D%7CnOiH84T3jPCG%2FIr%2BiPOG8lI%3D%7CneiHGXz6UeRW5k4rRCFXIkcoTdd7ym3fZdO2FrY%3D%7Cmu6b9JHlkuGa5pDqnOie5ZDkmeqb4ZTule6V7ZjjlOib7JrmkvdX%7Cm%2B%2BT%2FGIUew96DXsUYBd4HawbrTOXOVI4iyOLIYUqT%2B9P%7CmO6BH2wDcB9rHGsYdwRrH2gfbAN%2FDH8QZBNkF3gDeQqqCg%3D%3D%7Cme6d7oHyneiH84Twn%2BmR64TzUw%3D%3D; CNZZDATA921634=cnzz_eid%3D1437506062-1408774274-%26ntime%3D1408937320; CNZZDATA2629111=cnzz_eid%3D2021816723-1408774274-%26ntime%3D1408937320; isg=075E6FBDF77039CEB63A1BA239420244';<br />		$header[]='Host:www.xiami.com';<br />		$header[]='User-Agent:Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/32.0.1653.0 Safari/537.36';<br /><br />		curl_setopt($ch, CURLOPT_URL, $url);	//要访问的地址<br />		curl_setopt($ch, CURLOPT_HTTPHEADER, $header);	//设置http头<br />		curl_setopt($ch, CURLOPT_HEADER, 0);	//显示返回的Header区域内容<br />		curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);	//获取的信息以文件流的形式返回<br />		curl_setopt($ch, CURLOPT_TIMEOUT, 20);	//设置超时限制防止死循环<br />		$content = curl_exec($ch);	//执行操作<br />		$curl_errno = curl_errno($ch);<br />		$curl_error = curl_error($ch);<br />		curl_close($ch);	//关闭CURL会话<br />		preg_match('/name="description"\s+content="《(.+)》演唱者(.+),所属专辑《(.+)》/', $content,$matches);<br />		//如果歌曲名字为空,跳过<br />		if(empty($matches[1]) || trim($matches[1]) == ''){<br />			continue;<br />		}<br />		<br />		//匹配出的数据<br />		$data[$id]['song'] = empty($matches[1])?' ':$matches[1];<br />		$data[$id]['songer'] = empty($matches[2])?' ':$matches[2];<br />		$data[$id]['album'] = empty($matches[3])?' ':$matches[3];<br />		<br />		preg_match('/album\/(\d+)/', $content,$matches);<br /><br />		$data[$id]['albumId'] = empty($matches[1])?0:$matches[1];<br /><br />		preg_match('/\/artist\/(\d+)/', $content,$matches);<br />		$data[$id]['songerId'] = empty($matches[1])?0:$matches[1];<br /><br />		//歌词<div class="lrc_main"><br />		preg_match('/<div class="lrc_main">(.*)<\/div>/Us', $content,$matches);<br />		$data[$id]['lrc'] =  empty($matches[1])?' ':addslashes($matches[1]);<br />		//分享 分享<em>(3269)</em><br />		preg_match('/分享<em>\((\d+)\)<\/em>/Us', $content,$matches);<br />		$data[$id]['share'] =  empty($matches[1]) ? 0:$matches[1];<br />		//评论次数 <p class="wall_list_count"><span>920<br />		preg_match('/<p class="wall_list_count"><span>(\d+)<\/span>/Us', $content,$matches);<br />		$data[$id]['comment_count'] =  empty($matches[1])?0:$matches[1];<br /><br /><br />		//入库操作<br />		//print_r($data);<br />		//_____________________________<br />		$j++;<br />		usleep(3000);<br />	}
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------解决方案--------------------
亲,用snoopy类吧
------解决方案--------------------
本帖最后由 PhpNewnew 于 2014-08-27 22:09:20 编辑

亲用 Ruby 或者 Go 吧

开玩笑,就算你要跑好歹你也弄成命令行的模式跑呀....
------解决方案--------------------
应该是xiami.com服务器有限制,禁止采集吧

1,每个url请求只采10-20打,然后做个跳转在继续采集,这样也可以防止页面超时,如果你在虚机上运行,长时间点用cpu,进程可能会被kill.

2,每次url请求header中的user-agent,cookies,最好都能改一下。

3,如果还不行,用火车头试试吧!

4,如果火车也不行,那就放弃这个站吧!
------解决方案--------------------
把foreach拆分成循环执行同一页面。
第一次浏览器或者cronrab定时执行 http://localhost/caiji.php?num=1 每次完成后,$_GET['num']+1;curl 重复l执行同一脚本,当$_GET['num']==1000后,退出,不再执行curl。

if($_GET['num']){<br />$url = 'http://www.xiami.com/song/'.$_GET['num'];<br />//你的代码<br />$_GET['num'])++;<br />}<br />if($_GET['num']<1001){<br />        $ch = curl_init();<br />	curl_setopt($ch, CURLOPT_URL,"http://localhost/caiji.php?num=".$_GET['num']));<br />	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);<br />	curl_setopt($ch, CURLOPT_CONNECTTIMEOUT ,2); <br />	curl_setopt($ch, CURLOPT_TIMEOUT ,2);<br />	curl_exec($ch);<br />	curl_close($ch);<br />}else{<br />   exit;<br />}<br />
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