fork download 
  1. <?php
  2.  
  3. function shift_span($start, $end)
  4. {    
  5.     $time_diff = time_diff($start, $end);
  6.     $time_diff = $time_diff['hours'];
  7.  
  8.     # ignore minutes, safe after we calculated difference
  9.     $start = (int) $start;
  10.     $end = (int) $end;
  11.  
  12.     if($start + $time_diff <= 24)
  13.         return array($time_diff);
  14.  
  15.     return array(
  16.         abs($end - $time_diff),
  17.         abs(($start + $time_diff) % 24)
  18.     );
  19. }
  20.  
  21. function time_diff($start, $end)
  22. {
  23.     # do not ignore minutes
  24.     $start = strtotime($start);
  25.     $end = strtotime($end);
  26.  
  27.     $diff = abs($start - $end);
  28.     $hours = floor($diff / 3600);
  29.     $minutes = ($diff - ($hours * 3600)) / 60;
  30.  
  31.     $hours = $start > $end? 24 - $hours: $hours;
  32.  
  33.     return compact('hours', 'minutes');
  34. }
  35.  
  36. $start = '18:00:00';
  37. $end = '03:00:00';
  38.  
  39. var_dump(shift_span($start, $end));
Success #stdin #stdout 0.02s 13112KB
comments (?)
stdin 
Standard input is empty
stdout 
array(2) {
  [0]=>
  float(6)
  [1]=>
  int(3)
}
https://ideone.com/FR3x3
language:
PHP (php 7.3.5)
created:
13 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!