11111
mcal_day_of_week
(PHP3 >= 3.0.13, PHP4, PECL)mcal_day_of_week --
Returns the day of the week of the given date
int mcal_day_of_week (int year, int month, int day)
mcal_day_of_week() returns the day of the week
of the given date.
Possible return values range from 0 for Sunday through 6 for Saturday.
mcal_date_valid
mcal_day_of_year 22222