Date_Calc is a PHP class used to calculate and manipulate calendar dates and retrieve dates in a calendar format. It does not rely on 32-bit system date stamps, so you can display calendars and compare dates that date pre 1970 and post 2038.
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Ändern $ begin_weekday auf einen konstanten, damit die Klasse statisch verwendet werden kann (dies kann zu brechen Abwärtskompatibilität mit Ihren Skripten), Nutzung der statischen Methode der Klasse in allen Beispielen, und vier neue funtions (nextDayOfWeek, prevDayOfWeek, extDayOfWeekOnOrAfter und nextDayOfWeekOnOrBefore) .
Changing $begin_weekday to a constant so the class can be used statically (this may break backward compatability with your scripts), use of the static method of the class in all examples, and four new funtions (nextDayOfWeek, prevDayOfWeek, extDayOfWeekOnOrAfter, and nextDayOfWeekOnOrBefore).