PHP从字符串中删除特殊字符 [英] PHP remove special character from string

问题描述

我在删除特殊字符时遇到问题.我想删除除()/.％-&"以外的所有特殊字符，因为我将该字符串设置为标题.

I have problems with removing special characters. I want to remove all special characters except "( ) / . % - &", because I'm setting that string as a title.

我从原始代码中编辑了代码(如下所示):

I edited code from the original (look below):

preg_replace('/[^a-zA-Z0-9_ -%][().][\/]/s', '', $String);

但这无法删除特殊字符，例如:，"，"等.

But this is not working to remove special characters like: "’s, "“", "â€", among others.

原始代码:(这有效，但是会删除以下字符:()/.％-&)

original code: (this works but it removes these characters: "( ) / . % - &")

preg_replace('/[^a-zA-Z0-9_ -]/s', '', $String);

推荐答案

您的点匹配所有字符.像这样转义它(和其他特殊字符):

Your dot is matching all characters. Escape it (and the other special characters), like this:

preg_replace('/[^a-zA-Z0-9_ %\[\]\.\(\)%&-]/s', '', $String);

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