Time Calculator In PHP

Use the following function to work out how long it has been since an event in years, months, weeks, days, hours, minutes and seconds.

function getAge($year,$month,$day,$hour=0,$minute=0,$second=0){


 $age = mktime($hour,$minute,$second,$month,$day,$year);


 $age = time()-$age;


 return array('years'=>$age/60/60/24/365,


  'months'=>$age/60/60/24/12,


  'weeks'=>$age/60/60/24/7,


  'days'=>$age/60/60/24,


  'hours'=>$age/60/60,


  'minutes'=>$age/60,


  'seconds'=>$age);


}

The practical use of this function is that you can work out how old someone is from their birthday. Here is an example of the function in use.

// someone's birthday


echo ''.print_r(getAge(1984,10,4),true).'';

Which would output the following:

Array


(


 [years] => 23.721673198884


 [months] => 721.53422646605


 [weeks] => 1236.9158167989


 [days] => 8658.4107175926


 [hours] => 207801.85722222


 [minutes] => 12468111.433333


 [seconds] => 748086686


)

Any function like this can be tested by putting in the current time, if you get zero across the board then the function works.