=====Age Action=====

I haven't seen any actions out there that are useful for determining the age of something provided the start day, month, and year. I'm using this a temporary holding place while I clean up my code and improve some functionality.

This code doesn't quite work yet, but you can see what I'm planning on doing.

=====Source=====
%%(php;1)
<?php
/**
 * Age Action for Wikka Wiki (http://wikkawiki.org/AgeAction)
 * 
 * Usage:
 *      {{age}} - Displays usage
 *      {{age bYear="####" bMonth="##" bDay="##"}}  - Calculates current age based on date function
 *      {{age bYear="####" bMonth="##" bDay="##" 
 *        dYear="####" dMonth="##" dDay="##"}}      - Calculates age based on death day
 * 
 * Version 0.1
 * @input   int $bYear    Mandatory: Birth/Start year
 * @input   int $bMonth   Mandatory: Birth/Start month
 * @input   int $bDay     Mandatory: Birth/Start day 
 * @input   int $dYear    Optional: Death/End year
 * @input   int $dMonth   Optional: Death/End month
 * @input   int $dDay     Optional: Death/End day
 * @output  int $age      The age provided by either 
 *                        current date - birth/start date or death/end date - birth/start date
 * @uses    Wakka::ReturnSafeHTML()
 * @todo    Add Death/End Date calculations       
 *
 * Changelog
 *  0.1     Initial revision  
 */

// Get the Birth/Start dates
$bYear = (int)trim($this->htmlspecialchars_ent($vars['byear']));
$bMonth = (int)trim($this->htmlspecialchars_ent($vars['bmonth']));
$bDay = (int)trim($this->htmlspecialchars_ent($vars['bday']));

// Get the Death/End Dates
$dYear = (int)trim($this->htmlspecialchars_ent($vars['dyear']));
$dMonth = (int)trim($this->htmlspecialchars_ent($vars['dmonth']));
$dDay = (int)trim($this->htmlspecialchars_ent($vars['dday']));


$day=(empty($day))?'1':$day;

list($this_year, $this_month, $this_day) = explode(' ',date('Y n j'));
$age = $this_year - $bYear;

if ($bMonth>$this_month||($this_month==$bMonth&&$this_day<$bDay)) {
	$age--;
	}

echo $this->ReturnSafeHTML($age); 
?>
%%