en месяцы

function enMonth($day, $month, $year) {
    
    $day = ($year % 4 == 0) ? $day: $day+1;
    
    $days = [31, $day, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
    
    $enMonths = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
    
    $d = 0;
    for ($i = 0; $i < count($days); $i++) {
        if ($month > $days[$i]) {
            $d += $days[$i];
        } else {
            $d += $month;
            break;
        }
    }
    
    //echo $d . "<br>";
    
    $m = 0;
    for ($i = 0; $m < $d; $i++) {
        $m += $days[$i];
    }