使用curl从站点获取结果
我一直在尝试使用 POST 方法将一些变量发布到站点,使用curl 来获得一些结果。我正在发布到此链接。
http://www.rasta.pk/Lhr/Lhr_Traffic.aspx
在此页面,您将看到一个下拉菜单.. onchange 一些值在“黄色”彩色表中返回。
我已经监视了该网站,并尝试通过向该链接发出发布请求来获取这些结果。但是,我收到“错误标题”错误。我尝试过改变一些事情,但无法找到解决方案。
这是我的代码:
"Canal Bank Rd",
"ScriptManager1 " => "UpdatePanelDDLRoads|DropDownRoads",
"__EVENTARGUMENT" => "",
"__EVENTTARGET" => "DropDownRoads"
);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headerz);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 0);
curl_setopt($ch, CURLOPT_REFERER, "http://www.rasta.pk/Lhr/Lhr_Traffic.aspx");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$output = curl_exec($ch);
curl_close($ch);
echo $output;
?>
I have been trying to post some variables to a site using POST method, using curl to get some results. I am posting to this link.
http://www.rasta.pk/Lhr/Lhr_Traffic.aspx
At this page you will see a drop down menu .. onchange some values are returned in "Yellow" colored table.
I have monitored this site and trying to get those results by making a post request to that link. But, I am getting "Bad Header" error. I have tried changing things but ubable to find a solution.
Here is my code:
"Canal Bank Rd",
"ScriptManager1 " => "UpdatePanelDDLRoads|DropDownRoads",
"__EVENTARGUMENT" => "",
"__EVENTTARGET" => "DropDownRoads"
);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headerz);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 0);
curl_setopt($ch, CURLOPT_REFERER, "http://www.rasta.pk/Lhr/Lhr_Traffic.aspx");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$output = curl_exec($ch);
curl_close($ch);
echo $output;
?>
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提供的细节太少,我们无法确定。
猜测是您正在执行错误的帖子类型,因为当您将哈希数组传递给 CURLOPT_POSTFIELDS 时,它将执行多部分表单帖子,这可能不是服务器所期望的。而是传入一个字符串来进行“正常”POST。
如果这还不够,请在浏览器中使用 LiveHTTPHeaders 或类似工具来准确找出“手动”会话中发送的内容,然后确保您的curl 程序尽可能地模仿该操作。
There's too little details presented for us to know for sure.
A guess is that you're doing the wrong kind of post, since when you pass in a hash array to CURLOPT_POSTFIELDS it will do a multipart formpost which might not be what the server expects. Pass in a string instead to make a "normal" POST.
If that is not enough, use LiveHTTPHeaders or similar in a browser to figure out exactly what is sent in a "manual" session and then you make sure that your curl program mimics that operation as closely as possible.