Community Learn Tools Library Leisure
search
English
Home > Backend Development > PHP Problem > How to remove numbers from string in php

How to remove numbers from string in php

藏色散人
Release： 2023-03-05 20:24:02
Original
4157 people have browsed it

php去除字符串中数字的方法：首先创建一个PHP示例文件；然后使用正则表达式“$class=preg_replace("/\\d+/",'', $res);”实现去除字符串中的数字即可。

How to remove numbers from string in php

推荐：《PHP视频教程》 

PHP去掉字符串中的数字

这个比较简单，但是也有些需要注意的地方，先贴代码

$class=preg_replace("\\d+",'', $res);
Copy after login

需要使用preg_replace函数，但是只是这么写的话，会报错

Warning: preg_replace(): Delimiter must not be alphanumeric or backslash
Copy after login

翻译过来就是定界符不能是字母数字或反斜线。

想了一下，在正则表达式首尾加了一对/

$class=preg_replace("/\\d+/",'', $res);
Copy after login

这样就成功了

The above is the detailed content of How to remove numbers from string in php. For more information, please follow other related articles on the PHP Chinese website!

Related labels：
php
source：php.cn
Previous article：How to remove index.php in ci framework Next article：How to modify the size of uploaded images in php
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Latest Issues
PHP arrays obtained from URL parameters do not behave as expected I have a URL parameter that contains the category ID and I want to treat it as an array li...
From 2024-04-06 22:09:02
0
1
1428
Where should I place CustomLog directive in apache I'm using php:7.2-apachedocker. I need to disable health check url login access log. Based...
From 2024-04-06 22:03:59
0
1
990
What is the format of the variables in the return value? I am a new learner of php. I found a piece of code: if($x<time()){return[false,'error']...
From 2024-04-06 21:55:20
0
1
778
Problems encountered when using opentbs to generate odt files: values ​​of the same key are displayed in the same row instead of separate columns. I'm using a library called OpenTbs to create odt using PHP, I'm using it because columns a...
From 2024-04-06 20:18:18
0
1
483
Group MySQL results by ID for looping over I have a table with flight data in mysql. I'm writing a php code that will group and displ...
From 2024-04-06 17:27:56
0
1
406
Related Topics
More>
Popular Recommendations
Popular Tutorials
More>
Related Tutorials
Popular Recommendations
Latest courses
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template