Finding out the number of days elapsed from a UNIX timestamp is actually pretty straightforward. If you only know two dates then first you’ll need to convert the date to a UNIX timestamps and then subtract the most recent timestamp from the older timestamp like this:
<?php
$old_timestamp =
1102971600;
$elapsed_seconds =
time() -
$old_timestamp;
print ‘Seconds elapsed since ‘ .
date(“m-d-Y H:i:s”,
$old_timestamp) .
“: <b>$elapsed_seconds”;
?>
Now, let’s convert those seconds to days using the floor() function, by just adding the following code to the code above:
/*
divide #seconds by 60 for minutes
divide #of minutes by 60 for hours
divide #of hours by 24 for days
use floor to get integer for day
*/
$elapsed_days =
floor(($elapsed_seconds /
60) /
60 /
24);
print “<br />Number of days elapsed: $elapsed_days”;
