Moodle php migration expert

I'm urgently in need of a PHP professional who is well-versed in migrating systems from PHP 5.x to PHP 7.x. This project will require handling:

- User interfaces, both backend and frontend
- Database connections setup and management
- API integrations optimization

The ideal freelancer for this job would have:

- Proficiency in PHP 5.x and 7.x
- Experience in system migration
- Extensive knowledge in creating and managing UIs
- Solid experience in database connections
- Proficiency in API integrations

Note: Considering the complexity of this task, only freelancers with relevant experience in PHP system migrations should apply.