将 curl 响应保存到 php 变量中
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Saving a curl response into a php variable
提问by slick1537
I am trying to access my ec2's public hostname from inside the instance.
我正在尝试从实例内部访问我的 ec2 的公共主机名。
I would like to run this command
我想运行这个命令
curl http:// 169 254.169.254/latest/meta-data/public-hostname
inside a php script and save the response to a variable. How can I do this?
在 php 脚本中，并将响应保存到变量中。我怎样才能做到这一点？
回答by Shankar Damodaran
You can do like this
你可以这样做
<?php
//URL of targeted site
$url = "http://www.yahoo.com/";
$ch = curl_init();
// set URL and other appropriate options
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
// grab URL and pass it to the browser
$output = curl_exec($ch);
//echo $output;
// close curl resource, and free up system resources
curl_close($ch);
?>
The $outputvariable contains the response.
的$output变量包含响应。
回答by dm03514
Shankar Damodaran provided an example of how to retrieve the response from a curl request, but specifically it is the
Shankar Damodaran 提供了一个如何从 curl 请求中检索响应的示例，但具体来说是
CURLOPT_RETURNTRANSFERthat does as it says and returns the result from curl_exec
CURLOPT_RETURNTRANSFER照它说的做并返回结果 curl_exec
