(PHP 3>= 3.0.13, PHP 4 >= 4.0.0)
int mcal_date_compare (int a_year, int a_month, int a_day, int b_year, int b_month, int b_day)
int mcal_date_compare
mcal_date_compare() Compares the two given dates, returns <0, 0, >0 if a<b, a==b, a>b respectively