Adding month in php?

Question

month adding problem

<?php 

$showMonthsQty = 3;
for($i = (1-$showMonthsQty); $i <= 0; $i++) 
{
    echo $date = date("Y-m-1", strtotime(" +$i months"));

}
?>

when it run's im not geting the desired answer.

OUTPUT

2018-03-1 
2018-05-1  <----------error
2018-05-1

but i needed output is :

2018-03-1    
2018-04-1 
2018-05-1

how can i get this ?pls help!... tnx in advance...:)

Please take a [Tour](https://stackoverflow.com/tour). Please give more detailed description. — buhtz, May 31 '18 at 11:10
Possible duplicate of [PHP date() and strtotime() return wrong months on 31st](https://stackoverflow.com/questions/9058523/php-date-and-strtotime-return-wrong-months-on-31st) — CBroe, May 31 '18 at 11:14

score 3 · Accepted Answer · answered May 31 '18 at 11:25

You can use DateTime and DateInterval.

$showMonthsQty = 3;
for($i = $showMonthsQty-1; $i >= 0; $i--) 
{
    $date = new \DateTime(date("Y-m-1")); // First day of the current month
    $date->sub(new \DateInterval(sprintf('P%sM', $i))); // Substract $i month (P%dM)

    echo $date->format('Y-m-d')."<br />";
}

Output:

2018-03-01
2018-04-01
2018-05-01

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Adding month in php?

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