php不能使用mb_开头的函数怎么解决？
How to solve the problem that php cannot use functions starting with mb_? -PHP Chinese website Q&A-How to solve the problem that PHP cannot use functions starting with mb_? -PHP Chinese website Q&A
Let’s take a look and learn.
1，确认d:/php/ext/php_mbstring.dlls模块是否存在？ 不存在时，找个安装程序，找到php_mbstring.dlls复制到d:/php/ext下（假设php安装在d:/php目录下）。
2，更改php的配置文件php.ini 增加：
extension_dir=d:/php/ext extension=php_mbstring.dll
3，重新启动apache
4，修改完成，后续操作就可以了。
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
How to solve the problem that php cannot use functions starting with mb_? -PHP Chinese website Q&A-How to solve the problem that PHP cannot use functions starting with mb_? -PHP Chinese website Q&A
Let’s take a look and learn.
1，确认d:/php/ext/php_mbstring.dlls模块是否存在？ 不存在时，找个安装程序，找到php_mbstring.dlls复制到d:/php/ext下（假设php安装在d:/php目录下）。
2，更改php的配置文件php.ini 增加：
extension_dir=d:/php/ext extension=php_mbstring.dll
3，重新启动apache
4，修改完成，后续操作就可以了。