// The year is a leap year if it is divisible by 4 (evenly) and is either // divisible by 400 (again evenly) or not by 100. 1900 was not a leap year, but // 2000 was because it was divisible by 400 even though it was. function isLeapYear($year) { return ((($year % 4) == 0) && ((($year % 400) == 0) || (($year % 100) != 0))); }
Posted: March 18, 2023
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