Timestamps of start and end of month

Question

How can one get the timestamps of the first and last minutes of any month using PHP?

Answer 1

I think better then

$first_minute = mktime(0, 0, 0, date("n"), 1);
$last_minute = mktime(23, 59, 0, date("n"), date("t"));

is:

$first_minute = mktime(0, 0, 0, date("n"), 1);
$last_minute = mktime(23, 59, 0, date("n") + 1, 0);