preg_match与国际字符和重音符号 [英] preg_match with international characters and accents

问题描述

我想用只能包含字母(包括带有重音符号的字母)的模式来验证字符串.这是我使用的代码，它始终返回"nok". 我不知道我在做什么错，您能帮忙吗?谢谢

I would like to validate a string with a pattern that can only contain letters (including letters with accents). Here is the code I use and it always returns "nok". I don't know what I am doing wrong, can you help? thanks

$string = 'é';

if(preg_match('/^[\p{L}]+$/i', $string)){

    echo 'ok';

} else{

    echo 'nok';
}

推荐答案

添加UTF-8

Add the UTF-8 modifier flag (u) to your expression:

/^\p{L}+$/ui

也不需要将\p{L}包装在字符类中.

There is also no need to wrap \p{L} inside of a character class.

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