Extension points

phil/opening-hours

The library is plain PHP: it declares no service and no port, and its classes are final. What an application chooses goes through arguments.

Point	How
The time zone of a place	The `$timezone` of `OpeningHours::of()`: every question — open now, next opening — is answered in it, whatever zone the moment asked about is in
Holidays and closures	The `$specials` of `OpeningHours::of()`: `SpecialHours` for a day or a period, computed by the application from its own calendar
Where hours are kept	`OpeningHoursArray::from()` gives an array for one JSON column, `OpeningHoursArray::to()` reads it back
What people type	`HoursText` reads and writes the text form; a form of another shape builds `DayHours` and `TimeRange` itself
Structured data	`OpeningHoursSchema::of()` gives schema.org `openingHoursSpecification`; the application puts it in its JSON-LD
Catching the library's errors	Every exception implements `Phil\OpeningHours\Exception\OpeningHoursException`

Day names and the layout of a table of hours are the application's: groups() gives the runs of days with the same hours, and the application writes them in its language.