使用 curl 获取 url 响应的值 [英] get the value of an url response with curl

问题描述

我正在使用 PHP curl 方法来获取字符串类型的响应.创建我使用的请求:

I am using PHP curl method to get a string type response. To create the request I use:

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_FAILONERROR, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_setopt($ch, CURLOPT_BINARYTRANSFER, $data);

$response = curl_exec($ch);
$err = curl_error($ch);

curl_close($ch);

if($response === false)
    throw new Exception(__CLASS__."::".__FUNCTION__."_".$err);
return $response;

为什么我总是收到 bool(true) 响应而不是我从另一端回显的字符串?

Why I always receive a bool(true) response instead of the string I echo from the other side?

谢谢

推荐答案

既然你已经有了

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

在您的代码中.curl_exec 应该已经返回页面的内容而不是 BOOL.

in your code. curl_exec should already returns the content of the page instead of a BOOL.

这是我使用的库的片段.正如所指出的，这可能不需要，但它帮助了我一次......

This is a snippet of a library I use. As pointed out this might not be needed but it helped me out once...

//The content - if true, will not download the contents
curl_setopt($ch, CURLOPT_NOBODY, false);

此外，它似乎还有一些与 CURLOPT_NOBODY 相关的错误(这可能解释了您遇到此问题的原因):

Also it seems to have some bugs related to CURLOPT_NOBODY (which might explain why you have this issue):

• http://osdir.com/ml/web.curl.general/2005-07/msg00073.html
• http://curl.haxx.se/mail/curlphp-2008-03/0072.html

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