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<?php $start = new \DateTime('2006-04-12T12:30:00'); $end = new \DateTime('2006-04-14T11:30:00'); //determine what interval should be used - can change to weeks, months, etc $interval = new \DateInterval('PT1H'); //create periods every hour between the two dates $periods = new \DatePeriod($start, $interval, $end); //count the number of objects within the periods $hours = iterator_count($periods); echo $hours . ' hours' . PHP_EOL; //difference between Unix Epoch $diff = $end->getTimestamp() - $start->getTimestamp(); $hours = $diff / ( 60 * 60 ); echo $hours . ' hours (60 * 60)' . PHP_EOL; //difference between days $diff = $end->diff($start); $hours = $diff->h + ($diff->days * 24); echo $hours . ' hours (days * 24)' . PHP_EOL;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Mu3HD
function name:  (null)
number of ops:  49
compiled vars:  !0 = $start, !1 = $end, !2 = $interval, !3 = $periods, !4 = $hours, !5 = $diff
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $6      'DateTime'
          1        SEND_VAL_EX                                              '2006-04-12T12%3A30%3A00'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $6
    4     4        NEW                                              $9      'DateTime'
          5        SEND_VAL_EX                                              '2006-04-14T11%3A30%3A00'
          6        DO_FCALL                                      0          
          7        ASSIGN                                                   !1, $9
    7     8        NEW                                              $12     'DateInterval'
          9        SEND_VAL_EX                                              'PT1H'
         10        DO_FCALL                                      0          
         11        ASSIGN                                                   !2, $12
   10    12        NEW                                              $15     'DatePeriod'
         13        SEND_VAR_EX                                              !0
         14        SEND_VAR_EX                                              !2
         15        SEND_VAR_EX                                              !1
         16        DO_FCALL                                      0          
         17        ASSIGN                                                   !3, $15
   13    18        INIT_FCALL                                               'iterator_count'
         19        SEND_VAR                                                 !3
         20        DO_ICALL                                         $18     
         21        ASSIGN                                                   !4, $18
   14    22        CONCAT                                           ~20     !4, '+hours'
         23        CONCAT                                           ~21     ~20, '%0A'
         24        ECHO                                                     ~21
   17    25        INIT_METHOD_CALL                                         !1, 'getTimestamp'
         26        DO_FCALL                                      0  $22     
         27        INIT_METHOD_CALL                                         !0, 'getTimestamp'
         28        DO_FCALL                                      0  $23     
         29        SUB                                              ~24     $22, $23
         30        ASSIGN                                                   !5, ~24
   18    31        DIV                                              ~26     !5, 3600
         32        ASSIGN                                                   !4, ~26
   19    33        CONCAT                                           ~28     !4, '+hours+%2860+%2A+60%29'
         34        CONCAT                                           ~29     ~28, '%0A'
         35        ECHO                                                     ~29
   22    36        INIT_METHOD_CALL                                         !1, 'diff'
         37        SEND_VAR_EX                                              !0
         38        DO_FCALL                                      0  $30     
         39        ASSIGN                                                   !5, $30
   23    40        FETCH_OBJ_R                                      ~32     !5, 'h'
         41        FETCH_OBJ_R                                      ~33     !5, 'days'
         42        MUL                                              ~34     ~33, 24
         43        ADD                                              ~35     ~32, ~34
         44        ASSIGN                                                   !4, ~35
   24    45        CONCAT                                           ~37     !4, '+hours+%28days+%2A+24%29'
         46        CONCAT                                           ~38     ~37, '%0A'
         47        ECHO                                                     ~38
   25    48      > RETURN                                                   1

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