PHP 4, PHP 5, PHP 7, PHP 8
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.
A julian day number as integer
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.