LoRz

Code to compute age in PHP

<?php

  list($bYear, $bMonth, $bDay) = explode("-", $birthday);

  $cMonth = date('n');
  $cDay = date('j');
  $cYear = date('Y');

  if(($cMonth >= $bMonth && $cDay >= $bDay) || ($cMonth > $bMonth)) {
      $age = $cYear - $bYear;
  } else {
      $age = 0;
  }

  echo $age;
?>

The date format in the code above is yyyy-mm-dd.

If you are to use mm/dd/yyy format change the code

list($bYear, $bMonth, $bDay) = explode("-", $birthday);

to

list($bMonth, $bDay, $bYear) = explode("/", $birthday);