php – Simplexml_load_string()无法解析错误

我正在尝试加载解析Google Weather API响应(中文回复).

// This code fails with the following error
$xml = simplexml_load_file('http://www.google.com/ig/api?weather=11791&hl=zh-CN');

( ! ) Warning: simplexml_load_string()
[function.simplexml-load-string]:
Entity: line 1: parser error : Input
is not proper UTF-8, indicate encoding
! Bytes: 0xB6 0xE0 0xD4 0xC6 in
C:\htdocs\weather.PHP on line 11

为什么加载此响应失败？

如何编码/解码响应,以便simplexml正确加载它？

编辑：这是代码和输出.

<?PHP
$googleData = file_get_contents('http://www.google.com/ig/api?weather=11102&hl=zh-CN');
$xml = simplexml_load_string($googleData);

( ! ) Warning: simplexml_load_string()
[function.simplexml-load-string]:
Entity: line 1: parser error : Input
is not proper UTF-8, indicate encoding
! Bytes: 0xB6 0xE0 0xD4 0xC6 in
C:\htdocs\test4.PHP on line 3 Call
Stack
Time Memory Function Location 1 0.0020 314264 {main}(
) ..\test4.PHP:0
2 0.1535 317520 simplexml_load_string
( string(1364) ) ..\test4.PHP:3

( ! ) Warning: simplexml_load_string()
[function.simplexml-load-string]:
t_system
data=”SI”/>

( ! ) Warning: simplexml_load_string()
[function.simplexml-load-string]: ^ in
C:\htdocs\test4.PHP on line 3 Call
Stack
Time Memory Function Location 1 0.0020 314264 {main}(
) ..\test4.PHP:0
2 0.1535 317520 simplexml_load_string
( string(1364) ) ..\test4.PHP:3

解决方法:

这里的问题是SimpleXML没有查看HTTP标头来确定文档中使用的字符编码,只是假设它是UTF-8,即使Google的服务器确实将其宣传为

Content-Type: text/xml; charset=GB2312

您可以编写一个函数,使用超级秘密魔术变量$http_response_header查看该标题,并相应地转换响应.像这样的东西：

function sxe($url)
{   
    $xml = file_get_contents($url);
    foreach ($http_response_header as $header)
    {   
        if (preg_match('#^Content-Type: text/xml; charset=(.*)#i', $header, $m))
        {   
            switch (strtolower($m[1]))
            {   
                case 'utf-8':
                    // do nothing
                    break;

                case 'iso-8859-1':
                    $xml = utf8_encode($xml);
                    break;

                default:
                    $xml = iconv($m[1], 'utf-8', $xml);
            }
            break;
        }
    }

    return simplexml_load_string($xml);
}

php – Simplexml_load_string()无法解析错误

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