What's wrong with my formula to get the result down? I wanted it to work for every day 31 and to correct the month that there was not 31.
for ($i = 0 ; $i <= 12 ; $i++){
$tempo = strtotime('03/31/1990'.'+'.$i.' month');
echo date('d/m/Y', $tempo);
echo '<br>';
}
Result:
31/03/1990
01/05/1990
31/05/1990
01/07/1990
31/07/1990
31/08/1990
01/10/1990
31/10/1990
01/12/1990
31/12/1990
31/01/1991
03/03/1991
31/03/1991
The correct way to do this would be to use DateInterval or DatePeriod .
See a small example:
$start = new DateTime('2010-12-02');
$end = new DateTime('2012-05-06');
$interval = DateInterval::createFromDateString('1 month');
$period = new DatePeriod($start, $interval, $end);
foreach ($period as $dt) {
echo $dt->format('d/m/Y');
}
See working at IDEONE
Another way to know the last day of a month is to use the string last day of this month .
See:
// pega do mês atual
date('d/m/Y', strtotime('last day of this month'));
Or
$date = DateTime::createFromFormat('m/Y', '01/2015');
$date->modify('last day of this month');
echo $date->format('d/m/Y');