Can u explain this?

[fr600]

I found this somewhere but I need to understand what it means and how it works!

$diff = (time() - filectime("$filename"))/60/60/24;

Can you help?

[drew010]

it just returns the approximate number of days since a file was last modified.

time() gives you the current unix timestamp. (a value in seconds since the unix epoch [1/1/1970 12:00:00 am GMT])

filectime($filename) gives you the last modification time of a file as a unix timestamp.

subtracting the ctime from the time() will give you the number (in seconds) of how long ago it was modified. then dividing by 60 twice and then by 24 turns the seconds into days.

[fr600]

Now if I want to show $diff = current time - 5 days (current time minus 5 days), how can I do that?

[mrhappiness]

current time: [man]time[/man]

5 days = 5 24 60 60 (days hours per day minutes per hour seconds per minute)

will give you the difference in seconds