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Description

This php snippet displays the age of the user, based on a date of birth field.

Dependencies: profile.module must be installed & enabled and a custom profile date field called profile_dob must be setup. This is the DATE OF BIRTH field that is used to dynamically determine the users age.

Note: If you haven't setup your date-of-birth field yet, go to Administer › User management >Profiles and add a new DATE field. Give it the name profile_dob and fill out the rest of the options as suits.

Thanks to Pepe for improving the snippet.

Usage

• For use in your user profile page override
• Using a text editor like NOTEPAD.EXE or an equivalent, copy and paste the snippet into your user_profile.tpl.php file
• Change the div class name or the message text to suit.

<div class="fields">
<?php
    $year_diff = date("Y") - ($user->profile_dob{year});
    $month_diff = date("m") - ($user->profile_dob{month});
    $day_diff = date("d") - ($user->profile_dob{day});
    if ($month_diff < 0)
      $year_diff--;
    elseif ($month_diff == 0 && $day_diff < 0)
      $year_diff--;
?>
<p>AGE: <?php print $year_diff; ?> </p>
</div>

Drupal 6.x

This version works for me in Drupal 6:

<?php
$year_diff = date("Y") - ($account->profile_birthdate['year']);
$month_diff = date("m") - ($account->profile_birthdate['month']);
$day_diff = date("d") - ($account->profile_birthdate['day']);
if ($month_diff < 0)
  $year_diff--;
elseif ($month_diff == 0 && $day_diff < 0)
  $year_diff--;

print 'Age: ' . $year_diff;
?>

('profile_birthdate' stands for the 'Date of birth' field. Change it according to your configuration.)

FIXED Drupal 6

The above code "works" in a way, but is quite glitchy and doesn't always return the correct age. I found a fix and put it into a nice function which I added below. You can see this fix in action at http://www.coldcast.org/profile/darklight

<?php
function userage($uid) {
$data = user_load($uid);
$year_diff  = date("Y") - $data->profile_birthdate{year};
$month_diff = date("m") - $data->profile_birthdate{month};
$day_diff   = date("d") - $data->profile_birthdate{day};
if($month_diff < 0) $year_diff--;
elseif(($month_diff==0) && ($day_diff < 0)) $year_diff--;
return $year_diff;
}
?>

As in the original code, be sure to change "profile_birthdate" to match your own setup.

Drupal 5.x

For me there should be

<?php
global $user;
?>