删除标点符号、符号、变音符号、特殊字符的最佳方法是什么？

发布于 2024-10-13 06:17:49 字数 495 浏览 3 评论 0原文

我使用这些代码行来删除所有标点符号、符号等，因为您可以在数组中看到它们，

$pattern_page = array("+",",",".","-","'","\"","&","!","?",":",";","#","~","=","/","$","£","^","(",")","_","<",">");

$pg_url = str_replace($pattern_page, ' ', strtolower($pg_url));

但我想让它更简单，因为列出我想要在数组中删除的所有内容看起来很愚蠢，因为可能有是我想删除的其他一些特殊字符。

我想过使用下面的正则表达式，

$pg_url = preg_replace("/\W+/", " ", $pg_url);

但它不会删除下划线 - _

删除所有这些内容的最佳方法是什么？正则表达式可以做到这一点吗？

原文

I use these lines of code to remove all punctuation marks, symbols, etc as you can see them in the array,

$pattern_page = array("+",",",".","-","'","\"","&","!","?",":",";","#","~","=","/","$","£","^","(",")","_","<",">");

$pg_url = str_replace($pattern_page, ' ', strtolower($pg_url));

but I want to make it simpler as it looks silly to list all the stuff I want to remove in the array as there might be some other special characters I want to remove.

I thought of using the regular expression below,

$pg_url = preg_replace("/\W+/", " ", $pg_url);

but it doesn't remove under-score - _

What is the best way to remove all these stuff? Can regular expression do that?

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泼猴你往哪里跑 2024-10-20 06:17:49

根据您的贪心程度，您可以执行以下操作：

$pg_url = preg_replace("/[^a-zA-Z 0-9]+/", " ", $pg_url);

这将替换除字母、数字或空格之外的任何内容。

Depending on how greedy you'd like to be, you could do something like:

$pg_url = preg_replace("/[^a-zA-Z 0-9]+/", " ", $pg_url);

This will replace anything that isn't a letter, number or space.

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暖心男生 2024-10-20 06:17:49

使用类：

preg_replace('/[^[:alpha:]]/', '', $input);

将删除当前设置的区域设置不认为是“字符”的任何内容。如果是标点符号，您试图消除它，则该类将是 [:punct:]。

\W 表示“任何非单词字符”，与 \w 相反，后者包括下划线 (_ ）。

Use classes:

preg_replace('/[^[:alpha:]]/', '', $input);

Would remove anything that's not considered a "character" by the currently set locale. If it's punctuation, you seek to eliminate, the class would be [:punct:].

\W means "any non-word character" and is the opposite of \w which includes underscores (_).

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