PHP MySQL中的时间戳差异

Question

I want to get the exact time difference between two php timestamps. & I m using this code

CODE 1:

   $d1=strtotime(date('H:i:s'));      //current time consider e.g 15:00:00
   $d2=strtotime('18:00:00');

   $all = round(($d2 - $d1) / 60);
   $d = floor ($all / 1440);
   $h = floor (($all - $d * 1440) / 60);
   $m = $all - ($d * 1440) - ($h * 60);

& if print this $h & $m - I get what exactly I m looking for , difference between two timestamps.

Now but I want to get $d2 from my table ..

I have stored a timestamp in mysql table as datatype TIME .

as below

CODE 2

    $d1=strtotime(date('H:i:s'));      //current time consider e.g 15:00:00

$d2=strtotime($rows['showtime']);  //where $rows['showtime'] is the timestamp stored in mysql table. consider it as 18:00:00

$all = round(($d2 - $d1) / 60);
$d = floor ($all / 1440);
$h = floor (($all - $d * 1440) / 60);
$m = $all - ($d * 1440) - ($h * 60);

But when I print the $h & $m then im not getting the values properly... Please any one help me to do so...

Code 1 works perfectly but when i try to execute Code2 it shows some garbage values not the values im expecting.

please please please.

Answer 1

Following is the correct answer for this question

  $d1=strtotime(date('H:i:s'));      //current time consider e.g 15:00:00

  $d2=strtotime($rows['showtime']);  //where $rows['showtime'] is the timestamp stored in mysql table. consider it as 18:00:00

  $all = round(abs($d2 - $d1) / 60);
  $d = floor ($all / 1440);
  $h = floor (($all - $d * 1440) / 60);
  $m = $all - ($d * 1440) - ($h * 60);

USE abs() over there.