datetime get month php

1$month = date("m",strtotime($mydate));

1$dateTime = new DateTime();
2$month = $dateTime->format('m');

1echo 'Day' . date('d', strtotime($row['Date']));
2echo 'Month' . date('m', strtotime($row['Date']));
3echo 'Year' . date('Y', strtotime($row['Date']));

1// get day of month php
2// Method 1; some server not work, I had check php 7.3.24 not worked, php 7.3.8 worked
3cal_days_in_month(CAL_GREGORIAN, $month, $year)
4echo (cal_days_in_month(CAL_GREGORIAN, 2, 2020)); // => 29
5
6// Method 2;
7function days_in_month($month, $year) {
8    // calculate number of days in a month
9    return $month == 2 ? ($year % 4 ? 28 : ($year % 100 ? 29 : ($year % 400 ? 28 : 29))) : (($month - 1) % 7 % 2 ? 30 : 31);
10}
11
12// Method 3;
13echo (date('t', strtotime('2020-02-1')));	// 29
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