Function print days left birthday

function-print-days-left-birthday.php

<?php 
function daysLeftForBirthday($birthdate) { 
    /* input date format -> Y-m-d */ 
    list($y, $m, $d) = explode('-',$birthdate); 
    $nowdate = mktime(0, 0, 0, date("m"), date("d"), date("Y")); 
    $nextbirthday = mktime(0,0,0,$m, $d, date("Y")); 
    if ($nextbirthday<$nowdate) 
        $nextbirthday=$nextbirthday+(60*60*24*365); 
    $daycount=intval(($nextbirthday-$nowdate)/(60*60*24)); 
    return $daycount; 
}