好好学习，天天向上！！！
Is it possible to define functions casually in PHP? -PHP Chinese website Q&A-Can functions be defined casually in PHP? -PHP Chinese website Q&A
Please watch and learn.
可以的！
例如
function a(){}
function b(){}
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Is it possible to define functions casually in PHP? -PHP Chinese website Q&A-Can functions be defined casually in PHP? -PHP Chinese website Q&A
Please watch and learn.
可以的！
例如
function a(){}
function b(){}