//PHP获得指定日期所在月的第一天和最后一天
function getMonthDay($date){
$firstday = date("Y-m-01",strtotime($date));
$lastday = date("Y-m-d",strtotime("$firstday +1 month -1 day"));
return array($firstday,$lastday);
}
print_r(getMonthDay("2022-07-10"));
/**
* Array
* (
* [0] => 2022-07-01
* [1] => 2022-07-31
*)
*/
