求高手,模拟浏览器抓取网页
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;
}