jddayofweek

(PHP 4, PHP 5, PHP 7)

jddayofweek — Returns the day of the week

jddayofweek ( int $julian_day [, int $mode = CAL_DOW_DAYNO ] ) : int|string

Returns the day of the week. Can return a string or an integer depending on the mode.

julian_day

A julian day number as integer

mode

**Calendar week modes**
Mode	Meaning
0 (Default)	Return the day number as an int (0=Sunday, 1=Monday, etc)
1	Returns string containing the day of week (English-Gregorian)
2	Return a string containing the abbreviated day of week (English-Gregorian)

The gregorian weekday as either an integer or string.

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https://www.php.net/manual/en/function.jddayofweek.php