//获取某个月的最后一天或某个月的天数 |
function getMonthLastDay ( $month , $year ) |
{ |
switch ( $month ) |
{ |
case 4 : |
case 6 : |
case 9 : |
case 11 : |
$days = 30; |
break ; |
case 2 : |
if ( $year % 4 == 0 ) |
{ |
if ( $year % 100 == 0 ) |
{ |
$days = $year % 400 == 0 ? 29 : 28; |
} |
else |
{ |
$days = 29; |
} |
} |
else |
{ |
$days = 28; |
} |
break ; |
default : |
$days = 31; |
break ; |
} |
return $days ; |
} |