<?php eq(0, \org\rhaco\lang\Date::weekday(19050129)); eq(1, \org\rhaco\lang\Date::weekday(18890211)); eq(2, \org\rhaco\lang\Date::weekday(20050927)); eq(3, \org\rhaco\lang\Date::weekday(17890304)); eq(4, \org\rhaco\lang\Date::weekday(15880721)); eq(5, \org\rhaco\lang\Date::weekday(18681023)); eq(6, \org\rhaco\lang\Date::weekday(16001021)); eq(0, \org\rhaco\lang\Date::weekday("1905-01-29")); eq(1, \org\rhaco\lang\Date::weekday("1889/02/11"));