Question

I have two strings containing time, like this:

  'ftime1' => string '17:44' (length=5)
  'ftime2' => string '18:19' (length=5)

I need to calculate the difference between frime2 and ftime1, so result is in minutes.

I have tried

 $struct[$i]['ttime'] =  time($struct[$i]['ftime2']) - time($struct[$i]['ftime1']);
 $struct[$i]['ttime2'] =  strtotime($struct[$i]['ftime2']) - strtotime($struct[$i]['ftime1']);
 $struct[$i]['ttime3'] =  $struct[$i]['ftime2'] - $struct[$i]['ftime1'];

Which result in:

  'ttime' => int 0
  'ttime2' => int 2100
  'ttime3' => int 1

Answer 1

strtotime converts string into timestamp which is on seconds..so the difference will also be in seconds..do / 60 for minutes..

(strtotime($struct[$i]['ftime2']) - strtotime($struct[$i]['ftime1'])) / 60;

and time function does not behave that way, it returns current Unix timestamp, and doesn’t take any argument..