PHP is not recognized as an internal or external command in command prompt

Need to add C:\xampp\php to your PATH environment variable. Then close your command prompt and restart again. It is very important because if you do not restart your command prompt then changes will not be reflected.

Go to My Computer->properties -> Advanced system setting Now click on Environment Variables

Add ;C:\xampp\php in path variable value

Now restart command prompt DONE! Note: Make sure you run CMD via run as administrator