php 为什么在使用 file_get_contents() 时出现 500 错误，但在浏览器中有效？
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Why I'm getting 500 error when using file_get_contents(), but works in a browser?
提问by bdev
$html = file_get_contents("https://www.[URL].com");
echo $html;
produces this in the error logs:
在错误日志中产生这个：
PHP Warning: file_get_contents(https://www.[URL].com) [function.file-get-contents]: failed to open stream: HTTP request failed! HTTP/1.1 500 Internal Server Error in /Applications/MAMP/htdocs/test.php on line 13";
PHP 警告：file_get_contents(https://www.[URL].com) [function.file-get-contents]：无法打开流：HTTP 请求失败！第 13 行 /Applications/MAMP/htdocs/test.php 中的 HTTP/1.1 500 内部服务器错误”；
However, the site works fine in a browser.
但是，该站点在浏览器中运行良好。
I tried using cURL as well. I don't get any errors in the log file, but $htmlnow echoes:
我也尝试使用 cURL。我在日志文件中没有收到任何错误，但$html现在回显：
Server Error in '/' Application.
Object reference not set to an instance of an object....some more debugging info
“/”应用程序中的服务器错误。
你调用的对象是空的。...更多调试信息
Any ideas how to work around this?
任何想法如何解决这个问题？
回答by blang
Try this workaround:
试试这个解决方法：
$opts = array('http'=>array('header' => "User-Agent:MyAgent/1.0\r\n"));
$context = stream_context_create($opts);
$header = file_get_contents('https://www.example.com',false,$context);
If this doesn't work, maybe you cant read from https?
如果这不起作用，也许您无法从https读取？
回答by Racky
I had to enter more data into the header:
我不得不在标题中输入更多数据：
$opts = array('http' => array(
'method' => "GET",
'header' => "User-Agent Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0\r\n"
. "Accept:text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n"
. "Accept-Encoding:gzip, deflate\r\n"
. "Accept-Language:cs,en-us;q=0.7,en;q=0.3\r\n"
. "Connection:keep-alive\r\n"
. "Host:your.domain.com\r\n"
));
$context = stream_context_create($opts);
$html = file_get_contents($sap_url, FALSE, $context);
