PHP:

- CheckWkt
- EnumerateCategories
- EnumerateCoordinateSystems
- ConvertWktToCoordinateSystemCode
- ConvertCoordinateSystemCodeToWkt
- ConvertWktToEpsgCode
- ConvertEpsgCodeToWkt
- GetBaseLibrary
- IsValid

HTTP:

- EnumerateCategories
- EnumerateCoordinateSystems
- ConvertWktToCoordinateSystemCode
- ConvertCoordinateSystemCodeToWkt
- ConvertWktToEpsgCode
- ConvertEpsgCodeToWkt
- GetBaseLibrary
- IsValid