php如何去掉标点符号 [英] how to strip punctuation in php

问题描述

如何去除标点符号，除了这些字符. = $ ' - € %

How can I strip punctuation except for these characters . = $ ' - € %

推荐答案

由于您需要匹配某些 Unicode 字符 (€)，因此使用正则表达式是明智的.模式 \p{P} 匹配任何已知的标点符号，并且断言将您想要的特殊字符排除在消失之外:

Since you need to match some Unicode characters (€) it would be sensible to use a regular expression. The pattern \p{P} matches any known punctuation, and the assertion excludes your desired special characters from vanishing:

 $text = preg_replace("/(?![.=$'€%-])\p{P}/u", "", $text);

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