PHP Unit Converter

[Dufuna-Fem]

1. Write a PHP function that can take a parameter and perform these unit conversions.
   - Kilos to pounds
   - Meters to yards
   - Celsius to Fahrenheit

2. Ensure your work is saved in a new folder named php. This folder should be in the folder you created for yourself inside your submissions folder.

3. Ensure your PR is created with the task title as seen on the mobile App