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星期的计算函数_PHP
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- 2016-06-01 12:35:59817browse
/**
* getDay 返回星期(星期天=0)
* @param
* $y 年
* $m 月
* $d 日
* 假定传入的日期合法
* 计算范围：1752-9-14以后
*/
function getDay($y,$m,$d) {
if($m==1 || $m==2) {
$m += 12;
$y--;
}
$t = $d+2*$m+bcdiv(3*($m+1),5,0)+$y+bcdiv($y,4,0)-bcdiv($y,100,0)+bcdiv($y,400,0);
return ($a+1)%7;
}
?>
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