Question

我运行这个PHP代码：

echo "<br>system locales: ".system('locale -a')."<br><br>";
echo "current locales: ".setlocale(LC_ALL, 0)."<br><br>";
var_dump(setlocale (LC_ALL, 'de_DE.utf8'));
echo "current locales: ".setlocale(LC_ALL, 0)."<br><br>";
echo "accepting german characters?: ".ctype_alpha("äüöß")."<br><br>";
echo "accepting characters in general?: ".ctype_alpha("test")."<br><br>";
echo "rejecting numbers?: ".ctype_alpha("tes2t")."<br><br>";

并获得此输出：

C C.UTF-8 POSIX de_DE.utf8
system locales: de_DE.utf8

current locales: C

string(10) "de_DE.utf8" current locales: de_DE.utf8

accepting german characters?:

accepting characters in general?: 1

rejecting numbers?

我预计在调用setlocale（LC_ALL，'de_DE.utf8'）之后，ctype_alpha会接受像äöüß这样的德语字符，如文档中所述："Returns TRUE if every character in text is a letter from the current locale, FALSE otherwise."但它没有。我在这做错了什么？

PHP版本是：5.3.10-1ubuntu3.8

Answer 1

没有记录，但是，由于您使用的是utf8版本的语言环境，如果您的文件编码也是UTF-8，则必须使用utf8_decode()才能使其正常工作：

setlocale(LC_ALL, 'de_DE.utf8');
// Assuming your file encoding is also UTF-8
var_dump(ctype_alpha(utf8_decode('äüöß'))); // bool(true)
// Assuming your file encoding is anything else
var_dump(ctype_alpha('äüöß')); // bool(true)

使用UTF-8，ISO-8859-1，KOI8-U和Windows 1252文件编码在OS X Mavericks机器上使用PHP 5.4.17-cli进行测试。

PHP setlocale（）不适用于ctype_alpha检查

1 个答案: