如何从CLI标准输入中读取非ASCII字符 [英] How to read non-ASCII characters from CLI standard input

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问题描述

如果在CMD中键入å,则fgets将停止等待更多输入,并且循环将一直运行,直到按 ctrl-c 。如果我输入a-z0-9 !!()之类的正常字符,则按预期工作。

If I type å in CMD, fgets stop waiting for more input and the loop runs until I press ctrl-c. If I type a "normal" characters like a-z0-9!?() it works as expected.

我在Windows 7下使用UTF-在CMD中运行代码8作为字符集( chcp 65001 ),该文件另存为UTF-8,没有bom。我使用PHP 5.3.5(cli)。

I run the code in CMD under Windows 7 with UTF-8 as charset (chcp 65001), the file is saved as UTF-8 without bom. I use PHP 5.3.5 (cli).

<?php

echo "ÅÄÖåäö work here.\n";

while(1)
{
    echo '> '. fgets(STDIN);
}

?>

如果我将字符集更改为 chcp 1252 输入å并打印出>å时循环不会中断,但ÅÄÖåäö在这里工作变成ÅÄ Öåäö¶在这里工作!。而且我知道我可以将文件更改为ANSI,但是然后我不能使用诸如╠╦╗这样的特殊字符。

If I change charset to chcp 1252 the loop doesn't break when I type å and it print "> å" but the "ÅÄÖåäö work here" become "ÅÄÖåäö work here!". And I know that I can change the file to ANSI, but then I can't use special characters like ╠╦╗.

所以fgets为什么停止等待

如何输入用户名?我该如何解决?

编辑:

还发现了一个奇怪的错误。
echoöäåÅÄÖÖääöwork here!or?。chr(10); -> äåÅÄÖÖääöhere!要么?回覆!还是?
如果echo中的第一个字符为å/ä/ö,则会打印出奇怪的字符,并且最终输出重复项的 n-1 字符。(n =字符串开头的åäö数)。

Also found a strange bug. echo "öäåÅÄÖåäö work here! Or?".chr(10); -> ��äåÅÄÖåäö work here! Or? re! Or?. If the first char in echo is å/ä/ö it print strange chars AND the end output duplicate's with n - 1 char.. (n = number of åäö in the begining of the string).

例如: echoåäö1234 -> ?? 123434 echoåäöåäö1234 -> ?äöåäö1234 1234

EDIT2(已解决):

问题是 chcp 65001 ,现在我使用 chcp 437 chcp 437 )。
非常感谢Timothy Martens!

The problem was chcp 65001, now I use chcp 437 (chcp 437). Big thanks to Timothy Martens!

推荐答案

可能的解决方案:

echo '>'; 
$line = stream_get_line(STDIN, 999999, PHP_EOL);

注意:
我无法使用多个版本的PHP重现您的错误。
使用以下PHP版本5.3.8没有任何问题

Notes: I was unable to reproduce your error using multiple versions of PHP. Using the following PHP version 5.3.8 gave me no issues


PHP 5.3(5.3.8)
VC9 x86 Non Thread Safe(2011-Aug-23 12:26:18)
Arcitechture是Win XP SP3 32位

PHP 5.3 (5.3.8) VC9 x86 Non Thread Safe (2011-Aug-23 12:26:18) Arcitechture is Win XP SP3 32 bit

您可以尝试升级PHP。

You might try upgrading PHP.

我下载了php-5.3.5-nts-Win32-VC6-x86,但无法重现错误,对我来说效果很好

I downloaded php-5.3.5-nts-Win32-VC6-x86 and was not able to reproduce your error, it works fine for me.

编辑:另外,我使用西班牙语键盘输入字符。

Additionaly I typed the characters using my spanish keyboard.

Edit2:

CMD命令:

chcp 437

PHP代码:

<?php
$fp=fopen("php://stdin","r");
while(1){
    $str =  fgets(STDIN);
    echo mb_detect_encoding($str)."\n";
    echo '>'.stream_get_line($fp,999999,"\n")."\n";
}
?>

输出:

test
ASCII
test
>test
öïü

öïü
>öïü

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