The following calendar functions are the part of the PHP core so you can use these functions within your script without any further installation.
| Function | Description |
|---|---|
cal_days_in_month() | Returns the number of days in a month for a specified year and calendar |
cal_from_jd() | Converts a Julian Day Count into a date of the specified calendar |
cal_info() | Returns information about a specified calendar |
cal_to_jd() | Converts a date in a specified calendar to Julian Day Count |
easter_date() | Returns the Unix timestamp for midnight on Easter of the given year |
easter_days() | Returns the number of days after March 21 on which Easter falls for a given year |
frenchtojd() | Converts a date from the French Republican Calendar to a Julian Day Count |
gregoriantojd() | Converts a Gregorian date to a Julian Day Count |
jddayofweek() | Returns the day of the week |
jdmonthname() | Returns a month name |
jdtofrench() | Converts a Julian Day Count to a French Republican date |
jdtogregorian() | Converts Julian Day Count to Gregorian date |
jdtojewish() | Converts a Julian day count to a Jewish calendar date |
jdtojulian() | Converts a Julian Day Count to a Julian Calendar Date |
jdtounix() | Convert Julian Day to Unix timestamp |
jewishtojd() | Converts a date in the Jewish Calendar to Julian Day Count |
juliantojd() | Converts a Julian Calendar date to Julian Day Count |
unixtojd() | Convert Unix timestamp to Julian Day |