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<?php $lastDate = new DateTime('2019-03-01'); $firstDate = new DateTime('2019-01-01'); $dateInterval = $lastDate->diff($firstDate); var_dump($dateInterval);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/KeTaO
function name:  (null)
number of ops:  16
compiled vars:  !0 = $lastDate, !1 = $firstDate, !2 = $dateInterval
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $3      'DateTime'
          1        SEND_VAL_EX                                              '2019-03-01'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $3
    4     4        NEW                                              $6      'DateTime'
          5        SEND_VAL_EX                                              '2019-01-01'
          6        DO_FCALL                                      0          
          7        ASSIGN                                                   !1, $6
    6     8        INIT_METHOD_CALL                                         !0, 'diff'
          9        SEND_VAR_EX                                              !1
         10        DO_FCALL                                      0  $9      
         11        ASSIGN                                                   !2, $9
    8    12        INIT_FCALL                                               'var_dump'
         13        SEND_VAR                                                 !2
         14        DO_ICALL                                                 
         15      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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