問題描述

我需要正則表達式方面的幫助.我的字符串包含 unicode 字符，下面的代碼不起作用.

I need help with regular expressions. My string contains unicode characters and code below doesn't work.

前四個字符必須是數字，然后是逗號，然后是任何字母字符或空格...我已經讀過，如果我在常規表達式的末尾添加/u 但它對我不起作用...

First four characters must be numbers, then comma and then any alphabetic characters or whitespaces... I already read that if i add /u on end of regular expresion but it didn't work for me...

我的代碼適用于非 unicode 字符

My code works with non-unicode characters

$post = '9999,?kofja loka';;
echo preg_match('/^[0-9]{4},[s]*[a-zA-Z]+', $post);

感謝您的回答！

推薦答案

更新答案:
這是現在測試和工作

Updated answer:
This is now tested and working

$post = '9999, ?kofja loka';
echo preg_match('/^\d{4},[\s\p{L}]+$/u', $post);

\w 將不起作用，因為它不包含所有 unicode 字母，并且除了字母之外還包含 [0-9_].

\w will not work, because it does not contain all unicode letters and contains also [0-9_] additionally to the letters.

重要的還有 u 修飾符來激活 unicode 模式.

Important is also the u modifier to activate the unicode mode.

如果逗號后可以有字母 或 空格，那么您應該將它們放入相同的字符類中，在您的正則表達式中，逗號后有 0 個或多個空格，然后只有字母.

If there can be letters or whitespace after the comma then you should put those into the same character class, in your regex there are 0 or more whitespace after the comma and then there are only letters.

參見http://www.regular-expressions.info/php.html用于 php 正則表達式的詳細信息

See http://www.regular-expressions.info/php.html for php regex details

\p{L}(Unicode 字母)解釋 這里

The \p{L} (Unicode letter) is explained here

重要的還有使用字符串邊界的結尾 $ 來確保真正完整的字符串被驗證，否則它只會匹配第一個空格而忽略其余的例如.

Important is also the use of the end of string boundary $ to ensure that really the complete string is verified, otherwise it will match only the first whitespace and ignore the rest for example.

這篇關于PHP 正則表達式中的 UTF-8的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！