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cal_to_jd()

cal_to_jd - Converts from a supported calendar to Julian Day Count

Syntax

int cal_to_jd (int $calendar, int $month, int $day, int $year)

Arguments

  • calendar - Calendar to convert from, one of CAL_GREGORIAN, CAL_JULIAN, CAL_JEWISH or CAL_FRENCH.
  • month - The month as a number, the valid range depends on the calendar
  • day - The day as a number, the valid range depends on the calendar
  • year - The year as a number, the valid range depends on the calendar

Description

cal_to_jd() calculates the Julian day count for a date in the specified calendar. Supported calendar s are CAL_GREGORIAN, CAL_JULIAN, CAL_JEWISH and CAL_FRENCH.

Version

PHP 4.1.0, 5

Return value

A Julian Day number.