PHP RESTful API Configuration & Domain Update

I need help with some PHP RESTful API work. I've changed the domain of my project and need to update the code accordingly.

Key Tasks:
- Configure the existing PHP code on my host
- Update the API endpoints to reflect the new domain
- Update API keys or tokens for authentication

Ideal Skills:
- Proficient in PHP and RESTful API
- Experience with domain configuration and endpoint updates
- Familiar with API authentication processes