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Web resources > Calendar > Is a leap year?

Leap year

2023 is not a leap year

Those that are multiples of 4 are leap year. Except for secular years (multiples of 100) that are not multiples of 400.
Wikipedia: Leap year / Gregorian calendar
// PHP function to know if it is a leap year
// Return Boolean: true / falsefunction AnyDeTraspas($any){ /* Author: arnAu bellavista Gener 2021 */ if($any % 4 == 0){ $secular = substr($any, -2); if($secular == '00' and $any % 400 != 0){ return false; }else{ return true; } }else{ return false; } } // Cridem la funció i la guardem una variable boleana $any_de_traspas = AnyDeTraspas('2021');