php exec()在unicode模式下？

$cmd = "chcp 65001 > nul && echo цчшщюя-?ü??>utf8.txt";
exec($cmd,$output,$return);
var_dump($cmd,$return);

由于我找不到一个简单,快速和可靠的内部php解决方案,我结束使用我知道它的工作. CMD-批处理文件.
我创建了一个在运行时生成cmd批处理文件的小函数.
它只是预先设置chcp(更改代码页)命令以切换到unicode.
并解析输出.

function uft8_exec($cmd,&$output=null,&$return=null)
{
    //get current work directory
    $cd = getcwd();

    // on multilines commands the line should be ended with "rn"
    // otherwise if unicode text is there,parsing errors may occur
    $cmd = "@echo off
    @chcp 65001 > nul
    @cd "$cd"
    ".$cmd;


    //create a temporary cmd-batch-file
    //need to be extended with unique generic tempnames
    $tempfile = 'php_exec.bat';
    file_put_contents($tempfile,$cmd);

    //execute the batch
    exec("start /b ".$tempfile,$return);

    // get rid of the last two lin of the output: an empty and a prompt
    array_pop($output);
    array_pop($output);

    //if only one line output,return only the extracted value
    if(count($output) == 1)
    {
        $output = $output[0];
    }

    //delete the batch-tempfile
    unlink($tempfile);

    return $output;

}

用法：就像php exec()：

utf8_exec(‘echo цчшщюя-?ü??>utf8.txt’);

要么

uft8_exec(‘echo цчшщюя-?ü??’,$return);