How to calculate all months in the past year in php?

This article mainly introduces examples of PHP calculation of all months in the past year. Has very good reference value. Let’s take a look with the editor below

Without further ado, please look at the code:

$z = date('Y-m');
$a = date('Y-m', strtotime('-12 months'));
$begin = new DateTime($a);
$end = new DateTime($z);
$end = $end->modify('+1 month');
$interval = new DateInterval('P1M');
$daterange = new DatePeriod($begin, $interval ,$end);
foreach($daterange as $date){ 
  echo $date->format("Y-m") . "<br />";
}

Rendering:

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