如何设置PHP5的curl调用超时？已发布的 CURL 选项似乎不起作用
我们编写了一个从外部服务器提取数据的脚本。如果服务器出现故障，我们不希望服务器等待数据，因为我们处理大量数据，并且不希望服务器陷入困境。为了解决这个问题，如果卷曲调用花费的时间超过几百毫秒，我们会尝试使它们超时。
我发现一些文档说 CURLOPT_TIMEOUT_MS 和 CURLOPT_CONNECTTIMEOUT_MS 在我的 php 和 libcurl 版本中应该可用，但即使我将超时设置为 1ms，它似乎也没有超时。
$url = "http://www.cnn.com;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER,0); //Change this to a 1 to return headers
curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_TIMEOUT_MS, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT_MS, 1);
$data = curl_exec($ch);
curl_close($ch);
有谁知道我们做错了什么或有其他方法可以做到这一点？
We've written a script that pulls data from an external server. If the server goes down we don't want our server waiting for the data since we process a lot of data and we don't want it bogged down. To address this, we're trying to timeout our curl calls if they take more than a couple hundred milliseconds.
I found some documentation saying that CURLOPT_TIMEOUT_MS and CURLOPT_CONNECTTIMEOUT_MS should be available in my version of php and libcurl, but it does not seem to be timing out, even if I set the timeout to 1ms.
$url = "http://www.cnn.com;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER,0); //Change this to a 1 to return headers
curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_TIMEOUT_MS, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT_MS, 1);
$data = curl_exec($ch);
curl_close($ch);
Does anyone know what we're doing wrong or another way to do this?
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在无响应的dns服务器和curl多重超时不起作用中看到了这个:
saw this in unresponsive dns server and curl multi timeouts not working: