How do I minus one month from Year-Month 2019-03
You can try the following solution:
date('Y-m', strtotime($payroll['month'] . ' - 1 month'))
Try this -
echo $newdate = date('Y-m', strtotime('-1 months', strtotime($payroll['month'])));
So many nice answers here.
Just note that this can be done with PHP's DateTime class.
$date = new DateTime("2019-03-03");$date->sub(new DateInterval('P1M')); // P -> Period 1 Monthecho $date->format("Y-m")// Outputs: 2019-02A quick note from strtotime() 's official documentation.
Note: Using this function for mathematical operations is not advisable. It is better to use DateTime::add() and DateTime::sub() in PHP 5.3 and later, or DateTime::modify() in PHP 5.2.