php code to get the first and last day of this month

Let me introduce how to use php to get the codes of the first and last day of a month. Friends in need can refer to it.

Use php to get the first and last day of a month. Code:

<?php
/**
* php date函数示例
* 取一个月的第一天与最后一天
* by bbs.it-home.org
*/
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); 
}
?>