求高手,模拟浏览器抓取网页

WBOY
Release: 2016-06-23 14:23:07
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如抓取http://map.sogou.com/api/这个网页,我写的程序,如果不带网址后面的"/",会抓取得不到,但是站上网(http://tool.chinaz.com/Tools/PageCode.aspx),不带最后面的"/"即可抓取到(即:http://map.sogou.com/api),他是什么原理?下面贴出我的代码,请改进

function file_get($url){	 ob_start();	 $ch = curl_init();	 	 curl_setopt($ch, CURLOPT_COOKIEJAR, "./cookie.txt");	 curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727; InfoPath.1; CIBA)");	curl_setopt($ch, CURLOPT_URL, $url);	 curl_setopt($ch, CURLOPT_HEADER, FALSE);	 curl_setopt($ch, CURLOPT_COOKIESESSION, TRUE);	 curl_setopt($ch, CURLOPT_NOBODY, FALSE);	 curl_exec($ch);	 curl_close($ch);	 $content = ob_get_clean();	 	 	return $content;}
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回复讨论(解决方案)

请加一句代码:

curl_setopt($ch, CURLOPT_FOLLOWLOCATION,1);

因为你抓取http://map.sogou.com/api,他返回的是301跳转。加上这句就能抓取跳转后的html了。

请加一句代码:

curl_setopt($ch, CURLOPT_FOLLOWLOCATION,1);

因为你抓取http://map.sogou.com/api,他返回的是301跳转。加上这句就能抓取跳转后的html了。
加上也不行,还是无法获取


请加一句代码:

curl_setopt($ch, CURLOPT_FOLLOWLOCATION,1);

因为你抓取http://map.sogou.com/api,他返回的是301跳转。加上这句就能抓取跳转后的html了。
加上也不行,还是无法获取


function file_get($url){	 ob_start();	 $ch = curl_init();	 	 curl_setopt($ch, CURLOPT_COOKIEJAR, "./cookie.txt");	 curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727; InfoPath.1; CIBA)");	curl_setopt($ch, CURLOPT_URL, $url);	 curl_setopt($ch, CURLOPT_HEADER, FALSE);	 curl_setopt($ch, CURLOPT_COOKIESESSION, TRUE);	 curl_setopt($ch, CURLOPT_FOLLOWLOCATION,TRUE);	 curl_setopt($ch, CURLOPT_NOBODY, FALSE);	 curl_exec($ch);	 curl_close($ch);	 $content = ob_get_clean();	 	 	return $content;}
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我测试过的,加上是行的呀。

CURLOPT_FOLLOWLOCATION

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