Question

I need your help in how to subtract the last_modified and the final_manuscript_date in the following array:

Array ( 
    [chapters_id] => 10736 
    [last_modified] => 2010-12-21 15:01:55 
    [steps_id] => 3 
    [sub_step_id] => 0 
    [steps_position] => 1 
    [final_manuscript_date] => 2010-09-27 
)

So I can in this case get a value of N days between the dates 2010-12-21 and 2010-09-27?

Answer 1

Can’t you simply do:

$diff = strtotime($arr["final_manuscript_date"]) - strtotime($arr["last_modified"]);
$days = $diff / 84600; // to get # of days, you can round them off or use ceil/floor