I'm planning a simple CRUD application in Swift and I would like to use realm.io for saving data to the local device and storing it on the realm mobile platform which is on a separate server. Is it possible to query on the realm mobile platform database using PHP?
Realm Mobile Database is not available for PHP, but you can build your mobile apps on Swift and sync data with Realm Mobile Platform, learn more at https://realm.io/products/realm-mobile-platform and https://realm.io/products/realm-mobile-database.