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Fix weekday evaluation

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Dennis Eichhorn 2018-01-05 21:53:59 +01:00
parent 33548d679d
commit 8ab1303ec3
1 changed files with 1 additions and 12 deletions
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13
Stdlib/Base/SmartDateTime.php
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@ -228,18 +228,7 @@ class SmartDateTime extends \DateTime
*/ */
public static function getDayOfWeek(int $y, int $m, int $d) : int public static function getDayOfWeek(int $y, int $m, int $d) : int
{ {
$w = 1; return (int) date('w', strtotime($d . '-' . $m . '-' . $y));
$y = ($y - 1) % 400 + 1;
$ly = ($y - 1) / 4;
$ly = $ly - ($y - 1) / 100;
$ly = $ly + ($y - 1) / 400;
$ry = $y - 1 - $ly;
$w = $w + $ry;
$w = $w + 2 * $ly;
$w = $w + date("z", mktime(0, 0, 0, $m, $d, $y)) + 1;
$w = ($w - 1) % 7 + 1;
return $w === 7 ? 0 : $w;
} }
/** /**