PHP code example of maxmeffert / feiertage

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

maxmeffert / feiertage example snippets

$ft = Feiertage::of(2020);

$ft = Feiertage::of(2020);
$os = $ft[FeiertagEnum::OSTERSONNTAG];

$date = new \DateTime(...);
if (Feiertage::check($date))
{
	...
}

$date = new \DateTime(...);
$which = Feiertage::which($date);
if ($which == FeiertagEnum::OSTERSONNTAG)
{
	... 
}

foreach (Feiertage::of(2020) as $holiday)
{
	...
}

function div (int $a, int $b) : int {
	return intval( $a / $b );
}

function mod (int $a, int $b) : int {
	return intval( $a % $b );
}

function gauss (int $year) : int {
	$a = mod($year, 19);
	$b = mod($year, 4);
	$c = mod($year, 7);
	$H1 = div($year, 100);
	$H2 = div($year, 400);
	$N = 4 + $H1 - $H2;
	$M = 15 + $H1 - $H2 - div(8 * $H1 + 13, 25);
	$d = mod(19 * $a + $M, 30);
	$e = mod(2 * $b + 4 * $c + 6 * $d + $N, 7);
	$o = 22 + $d + $e;

	if ($o == 57) {
		$o = 50;
	}
	
	if ($d == 28 && $e == 6 && $a > 10) {
		$o = 49;
	}

	return $o;
}

function easterSunday (int $year) : \DateTimeImmutable {
	$day = gauss($year);
	
	$month = 3;
	
	if (31 < $os) {
		$day = mod($os, 31);
		$month = 4;
	}
	
	return new \DateTimeImmutable("{$year}-{$month}-{$day}");
}

easter_date

easter_date

easter_date

easter_date