Question: how to solve composer is not recognized as an internal or external command?
Answer: 1) Download your composer installer (.exe) and then put it on the C:/XAMPP. 2) Run your installer by just clicking on next till the very end. 3) Open your command-line (cmd) and just cd to your project directory (C:/XAMPP/htdocs/myproject) and then type the composer and see if you have it installed on your PC.