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How to remove numbers from string in php

藏色散人
Release： 2023-03-08 08:52:01
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2899 people have browsed it

php去掉字符串中的数字的方法：首先创建一个PHP示例文件；然后通过正则表达式“preg_replace("/\\d+/",'', $res);”匹配字符串中的数字并删除即可。

How to remove numbers from string in php

本文操作环境：Windows7系统、PHP7.1、Dell G3电脑。

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

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