PHP Seconds Difference time() PHP - php

Question

Hi I'm trying to to do the following with php and html:
I have a form that submits time() and stores it as the variable TIMESTAMP in $POST, the next time the form is submitted a new variable is posted called DELAY, which is time()-TIMESTAMP. The process seems to work, but my problem appears to the PHP time() function seems to be a bit fluttery.
I can submit the form every lets say 3 secs and sometimes DELAY = 3 as it should other times its not correct like say 7 secs or even 12 secs. How can I get the time() function to be more accurate when returning the current time?
I need to use the delay in an MySQL query that is only executed when the delay is greater than 15 secs

Answer 1

This is surely not php time() related.
If you're running on a virtual machine, you can experience time drifts if host is not configured properly. Check if this is the case.

Answer 2

i hope this code help you
function DifTime($T1,$T2){
$diff=abs($T2-$T1);
$years = floor($diff / (365*60*60*24));
$months = floor(($diff - $years * 365*60*60*24) / (30*60*60*24));
$days = floor(($diff - $years * 365*60*60*24 - $months*30*60*60*24)/ (60*60*24));
$hours = floor(($diff - $years * 365*60*60*24 - $months*30*60*60*24 - $days*60*60*24)/ (60*60));
$minuts = floor(($diff - $years * 365*60*60*24 - $months*30*60*60*24 - $days*60*60*24 - $hours*60*60)/ 60);
$seconds = floor(($diff - $years * 365*60*60*24 - $months*30*60*60*24 - $days*60*60*24 - $hours*60*60 - $minuts*60));
return array('Day'=>$days,'Month'=>$months,'Year'=>$years,'Hours'=>$hours,'Minuts'=>$minuts,'Seconds'=>$seconds);
}
sample:
$Data=DifTime(TIMESTAMP,(time()-TIMESTAMP)+TIMESTAMP);
printf("%d:%d:%d:%d", $Data['Day'], $Data['Hours'], $Data['Minuts'], $Data['Seconds']);
output:
0:0:0:10