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通过URL抓取网页的TITLE,有些网站抓不到,方法愚笨,求指点。

时间:2021-07-01 10:21:17 帮助过:20人阅读

本帖最后由 u012716911 于 2013-11-04 11:25:29 编辑

curl 抓取 标题

代码是我自己这样想着写的,不知道还有没有更好的方法。请各位给些指点
有些网站可以抓到,如百度,有些网站就抓不到,比如太平洋汽车的首页。

public function set_title()	{		// 获取进来URL		$url = $_POST['url'];		// $url = "www.pcauto.com.cn"; 抓不到!		//一连串的curl设置				$ch = curl_init();		curl_setopt($ch,CURLOPT_URL,$url);		curl_setopt($ch,CURLOPT_HEADER,0);		curl_setopt($ch,CURLOPT_ENCODING,'gzip');		curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);		$content_source = curl_exec($ch);		curl_close($ch);			//获取抓到内容的编码格式		$encode = mb_detect_encoding($content_source, array('GB2312','GBK','UTF-8','ASCII')); 				//转码		$content_source = iconv($encode, 'utf-8//IGNORE',$content_source);				//截取		if(preg_match("/<title>(.*?)<\/title>/i",$content_source,$title))		{			echo $title[1];		}		else		{			echo '拉取标题失败';		}	}</pre> </p> <br /> <h2>回复讨论(解决方案)</h2> <p class="sougouAnswer">  <title>([\s\S]*?)<\/title> </p> <p class="sougouAnswer">  问题出在正则匹配那里,你加个 s 修正符就好了  <br /> if(preg_match("/<title>(.*?)<\/title>/is",$content_source,$title))  <br />  <br /> s  如果设定了此修正符,模式中的圆点元字符(.) 匹配所有的字符,包括换行符。没有此设定的话,则不包括换行符。 </p> <p class="sougouAnswer">  正则修饰符 </p> <p class="sougouAnswer">  问题出在正则匹配那里,你加个 s 修正符就好了  <br /> if(preg_match("/<title>(.*?)<\/title>/is",$content_source,$title))  <br />  <br /> s  如果设定了此修正符,模式中的圆点元字符(.) 匹配所有的字符,包括换行符。没有此设定的话,则不包括换行符。  <br /> 非常感谢                    </div>

                  

	 	
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