php 获取一个月第一天与最后一天的代码

复制代码 代码如下:
function getthemonth($date)
{
$firstday = date("Y-m-01", strtotime($date));
$lastday = date("Y-m-d", strtotime("$firstday +1 month -1 day"));
return array($firstday, $lastday);
}