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How to remove numbers from string in php

藏色散人Original: 2020-09-11 10:15:064100browse

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。

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+",&#39;&#39;, $res);

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

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+/",&#39;&#39;, $res);

这样就成功了

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