PHP Age Calculator

<?php

function age_calculator($day,$month,$year){
 if (date("n") > $month)
  $age = (date("Y") - $year);
 elseif (date("n") == $month){
  if (date("j") < $day) $age = (date("Y") - $year) - 1;
  else $age = (date("Y") - $year);
 }
 else $age = (date("Y") - $year) - 1;
 return $age;
}

?>