#42155 [Opn->Bgs]: checkdate() incorrect behaviour for leap year

ID: 42155 Updated by: scottmac@php.net Reported By: ahlers_wim at hotmail dot com -Status: Open +Status: Bogus Bug Type: Date/time related Operating System: All PHP Version: 5.2.3 New Comment: Years divisible by 400 *are* leap years, Years divisible by 100 are not leap years Years divisible by 4 *are* leap years php -r "var_dump(checkdate(2, 29, 2000));" bool(true) php -r "var_dump(checkdate(2, 29, 2100));" bool(false) php -r "var_dump(checkdate(2, 29, 2200));" bool(false) php -r "var_dump(checkdate(2, 29, 2300));" bool(false) php -r "var_dump(checkdate(2, 29, 2400));" bool(true) Previous Comments: ------------------------------------------------------------------------ [2007-07-31 09:40:42] ahlers_wim at hotmail dot com Description: ------------ Dates divisible by 400 should not be a leap year. (for milleniums to come.) checkdate() should be modified to incorporate this date related cycle. Reproduce code: --------------- checkdate(2, 29, 2000); Expected result: ---------------- FALSE Actual result: -------------- TRUE ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=42155&edit=1