PHP calculates the last day of each month

The PHP date () function and the mktime () function are used primarily.

The format parameter of the date () function uses the option T, which represents the total number of days in a month, with a value range of 28-31.

The Mktime () function is primarily used to create timestamps, where only 4 parameters are used, from left to right, respectively, minutes, seconds, and months. This allows you to create a timestamp for a month, such as how much time stamp is December?

The sample code looks like this:

<? PHP function lastdayofmonth ($month) {    echodatemktime$ Month));}

PHP calculates the last day of each month