‘php.exe’ is not recognized as an internal or external command, operable program or batch file

Question

‘php.exe’ is not recognized as an internal or external command, operable program or batch file.

Why does that error occur even though

Answer 1

My case am Using Bitnami Ruby Stack apache Web server ,

1. Pressed Windows key + Pause/Break Button
2. Clicked advanced system settings
3. Click Environment Variables
4. Under System variables > edit PATH variable by adding C:\Bitnami\rubystack-1.9.3-24\php
5. Click Ok to close the Environment Variable window

6. Close your command prompt if open

   *(Proceed to 7. to confirm if php is installed)

7. Press Windows Key + R button to open your cmd
8. Type php -v to view your php version