phpstudy is installed, the rest of the things have not been adjusted, the output is like this
php code requires server environment to execute, unlike html
![T8D9AXMK8]@5BU87SLCR6KJ.png](https://img.php.cn/upload/image/168/964/352/1615474154861187.png "1615474154861187.png")
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
php code requires server environment to execute, unlike html