PHP function that returns the exact age


Here is a simple PHP function that returns the exact age of a person given his/her birthdate:

function age($month, $day, $year){
 $y = gmstrftime("%Y");
 $m = gmstrftime("%m");
 $d = gmstrftime("%d");
 $age = $y - $year;
 if($m <= $month)
 if($m == $month)
 if($d < $day) $age = $age - 1;
 else $age = $age - 1;

The function is used with a call like this:


The example call would return 30 (at this moment). You can use this to display the age of your users if you have their birthdate.


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