Carbon macro for checking if a birthday is between two dates (i.e. is the birthday upcoming within the next 3 months)

CarbonBirthday.php

<?php

// Datermines if the birth date given is between two dates.
Carbon::macro('isBirthdayBetween', function($start, $end)  {
    // Adjust the birthdate year to the current year
    $birthday = $this->copy()->year(date('Y'));
    
    // If the birthday has past, add a year (nearing the new year)
    if ($birthday->isPast()) {
        $birthday = $birthday->addYear();
    }

    return $birthday->between($start, $end);
});


// Example Usage
$today = Carbon::parse('2019/12/01');
$threeMonths = now()->addMonths(3);
$birthday = Carbon::parse('1990/05/24')->isBirthdayBetween($today, $threeMonths); // False