在 php 中将 UTF-16LE 转换为 UTF-8

问题描述

我使用 iconv php 函数，但有些字符不能正确转换:

I use iconv php function but some characters doesn't convert correctly:

...
$s = iconv('UTF-16', 'UTF-8', $s);
...
$s = iconv('UTF-16//IGNORE', 'UTF-8', $s);
...
$s = iconv('UTF-16LE', 'UTF-8', $s);
...
$s = iconv('UTF-16LE//IGNORE', 'UTF-8', $s);
...

我也尝试了 mb_convert_encoding 函数，但无法解决我的问题.

I also try mb_convert_encoding function but can't solve my problem.

示例文本文件:9px.ir/utf8-16LE.rar

A sample text file: 9px.ir/utf8-16LE.rar

推荐答案

iconv 支持UTF-16LE编码.

您可以使用它来将编码从 UTF-16LE 转置为 UTF-8:

You can use it to transpose the encoding from UTF-16LE to UTF-8:

$result = iconv($in_charset = 'UTF-16LE' , $out_charset = 'UTF-8' , $str);
if (false === $result)
{
    throw new Exception('Input string could not be converted.');
}

参见iconv^文档.

我只是想知道 UTF 中的所有代码点是否可用-16LE 在 UTF-8 中可用.但我认为这应该适合您的情况.

I'm just wondering if all code-points available in UTF-16LE are available in UTF-8. But I assume that this should fit in your case.

我无法在自己的盒子上重现该问题，但在 另一个框我遇到了这个通知:

I was not able to reproduce the problem on a box of my own, but on another box I ran into this notice:

注意:iconv() [function.iconv]: 字符集错误，从 UTF-16LE' 到 UTF-8' 的转换是不允许的 ...

Notice: iconv() [function.iconv]: Wrong charset, conversion from UTF-16LE' toUTF-8' is not allowed in ...

看起来并不是所有的 iconv 版本都能真正将 UTF-16LE 转换为 UTF-8.

Looks like that not all iconv versions can actually convert UTF-16LE to UTF-8.

使用 mb_convert_encoding^Docs 相反，至少在这种情况下是这样 (演示):

It might be a workaround to use mb_convert_encoding^Docs instead, at least it was in this case (Demo):

$result = mb_convert_encoding($str , 'UTF-8' , 'UTF-16LE');

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