Php Calendar Julian Day Count Functions, GREGORIAN JULIAN JEWISH FRENCH Calander

Topic

What are the Julian Day Count Functions?

Explanation

cal_to_jd Function:
Syntax:

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

The above function calculates the Julian day count for a date in the specified calendar. It supports GREGORIAN, JULIAN, JEWISH, FRENCH calendars.

cal_from_jd Function:
Syntax:

    array cal_from_jd  ( int $jd, int $calendar )

The above function Julian day provided into a date of the specified calander. It supports GREGORIAN, JULIAN, JEWISH, FRENCH calendars.

FrenchToJD Function:
Syntax:

    int frenchtojd (int $month, int $day, int $year)

The above function converts a date from the French Republican Calendar to a Julian Day Count. The year should be between 1 and 14, days from 1 to 30, month from 1 to 13.

GregorianToJD Function:
Syntax:

     int gregoriantojd  (int $month, int $day, int $year)

The above function converts a Gregorian date to Julian Day Count. The year should be from -4714 and 9999, month from 1 to 1, days from from 1 to 31.

JDDayOfWeek Function:
Syntax:

    mixed jddayofweek (int $julianday [, int $mode= CAL_DOW_DAYNO  ] )

The above function returns the day of a week based on the mode as integer or string. In "Mode 0" it returns integer ,using "Mode 1" it returns a string of the day, using "Mode 2" it returns an abbreviated string.

JDMonthName Function:
Syntax:

    string jdmonthname ( int $julianday, int $mode)

The above function returns the name of the month, basedon the "Mode". If "Mode 0" for abbreviated-gregorian, "Mode 1" for gregorian,"Mode 2" for Julian abbreviated, "Mode 3" for Julian, "Mode 4" for Jewish, "Mode 5" for French Republican calendars.

JDToFrench Function:
Syntax:

    string jdtofrench (int $juliandaycount)

The above code converts the Julian Day Count to the French Republican Calander.

JDToGregorian Function:
Syntax:

    string jdtogregorian ( int $julianday )

The above function converts the Julian Day Count to Gregorian Date.

JDToJewish
Syntax:

   string jdtojewish (int $juliandaycount 
                       [,bool $hebrew= false [,int $fl= 0 ]])

The above function converts Julian Day Count to the Jewish Calander. The hebrew parameter should be set to "True", "f1" parameter is used to store the hebrew output character.

JDToJulian
Syntax:

    string jdtojulian (int $julianday)

The above function is used to convert Julian Day Count to Julian Calendar Date.

JDtounix
Syntax:

    int jdtounix (int $jday)

The above function will return a Unix timestamp corresponding to the Julian Day given in the parameter jday.

JewishToJD
Syntax:

    int jewishtojd ( int $month, int $day, int $year)

The above function converts a date in Jewish Calander to Julian Day Count.

JulianToJD
Syntax:

    int juliantojd ( int $month, int $day, int $year)

The above function converts a Julian Calendar Date to Julian Date Count. The valid range of Julian Calendar is from 4713 B.C. to 9999 A.D.

unixToJD

Syntax:

    int unixtojd  ([ int $timestamp= time()  ] )

The above function converts a unix timestamp to julian day.