I haven’t built a website for many years. I want to install a new website program, but I found that the previously installed PHP version is too low, which makes the website program unusable. Can it be upgraded? Will the original website program be affected after the upgrade?
The previous server was WIN2003 version, PHP was version 5.0, and SQL matched it
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
The functions of the old version have been abandoned in the new version of php
Will affect the original program!