关于php：字母数字preg_replace忽略单字符

Alpha numeric preg_replace ignoring unichars

我正在尝试使用preg_replace替换除chars nums和unicode chars之外的所有内容。
这是我尝试过并得到的错误：

preg_replace(): Compilation failed: range out of order in character class at offset 22

这是我的正则表达式：

[^A-Za-z0-9 \\x{0080}-\\x{FFFF}]

我想将文本转换为以下示例：

CAF?‰? CREATORS WERE HERE!#1 => CAF?‰ CREATORS WERE HERE1

-编辑-

我尝试了以下解决方案，并收到此错误：

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$str = 'CAF?‰? CREATORS WERE HERE!#1';

$alphaNumStr = preg_replace('/[^A-Za-z0-9 x{0080}-x{FFFF}]/u', '', $str);

echo 'TEXT: ' . $alphaNumStr;

TEXT: preg_replace(): Compilation failed: range out of order in character class at offset 20 on line 4

如果要保留所有语言的所有字母，请使用：

1 2	$str = 'CAF?‰? CREATORS WERE HERE!#1'; echo preg_replace('/[^\\p{L}\\d\\s]+/u', '', $str);

输出：

1	CAF?‰ CREATORS WERE HERE1

\\p{L}代表任何字母。

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