如何修复 php 警告：file_get_contents?failed to open stream: HTTP request failed
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How to fix php Warning: file_get_contents?failed to open stream: HTTP request failed
提问by u1334703
How to fix php Warning: file_get_contents?
如何修复 php 警告：file_get_contents？
Warning: file_get_contents(http://192.168.1.254:9999/api/p/internal/ucenter/login?loginName=test102&password=111111) [function.file-get-contents]: failed to open stream: HTTP request failed! HTTP/1.1 400 Bad Request in /Applications/XAMPP/xamppfiles/htdocs/PHP_test/index.php on line 49
Here is code related to $files:
这是与 $files 相关的代码：
<?php
$loginNames="test102";
$passwords="111111";
$apiUrl = "http://192.168.1.254:9999/api/p/internal/ucenter/login?loginName=".$loginNames."&password=".$passwords;
$callback = file_get_contents($apiUrl);
print_r($callback);
//echo $callback;
?>
回答by Ja?ck
If this shows in your page, there's something wrong with your display_errorssetting.
如果这显示在您的页面中，则说明您的display_errors设置有问题。
Ideally, display_errorsshould be Offfor production machines and you should handle errors by yourself using set_error_handler().
理想情况下，display_errors应该Off用于生产机器，您应该使用set_error_handler().
See also: Error logging, in a smooth way
另请参阅：错误记录，以流畅的方式
This particular warning can't be stopped unless you make sure the page exists. However, used in isolation, you can use the muffle operatorto prevent the warning from appearing:
除非您确保该页面存在，否则无法停止此特定警告。但是，单独使用时，您可以使用muffle 运算符来防止出现警告：
if (false !== ($contents = @file_get_contents('...'))) {
// all good
} else {
// error happened
}
Note that this will still call your custom error handler
请注意，这仍会调用您的自定义错误处理程序
回答by Ronak Patel
I have better option for you.
我有更好的选择给你。
Avoid file_get_contents, user cURL.
避免file_get_contents，用户 cURL。
Let me show you one example:
让我给你看一个例子：
$url = 'http://www.yoururl.com';
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_HEADER, false);
$data = curl_exec($curl);
curl_close($curl);
Note: Is you feel encoding problem add this: curl_setopt($curl, CURLOPT_ENCODING ,"");
注意：您是否觉得编码有问题，请添加以下内容： curl_setopt($curl, CURLOPT_ENCODING ,"");
Thanks.
谢谢。
回答by Kodomo
I suggest try to check if url exist before you call file_get_contents. You can ref page How can I check if a URL exists via PHP?
我建议在调用 file_get_contents 之前尝试检查 url 是否存在。您可以参考页面如何通过 PHP 检查 URL 是否存在？
