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<?php $start = new \DateTime('01-02-2015'); $end = new \DateTime(); $interval = $end->diff($start); var_dump( ($interval->format('%y') * 12) + $interval->format('%m') );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/MqsgJ
function name:  (null)
number of ops:  23
compiled vars:  !0 = $start, !1 = $end, !2 = $interval
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $3      'DateTime'
          1        SEND_VAL_EX                                              '01-02-2015'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $3
    4     4        NEW                                              $6      'DateTime'
          5        DO_FCALL                                      0          
          6        ASSIGN                                                   !1, $6
    6     7        INIT_METHOD_CALL                                         !1, 'diff'
          8        SEND_VAR_EX                                              !0
          9        DO_FCALL                                      0  $9      
         10        ASSIGN                                                   !2, $9
    8    11        INIT_FCALL                                               'var_dump'
    9    12        INIT_METHOD_CALL                                         !2, 'format'
         13        SEND_VAL_EX                                              '%25y'
         14        DO_FCALL                                      0  $11     
         15        MUL                                              ~12     $11, 12
         16        INIT_METHOD_CALL                                         !2, 'format'
         17        SEND_VAL_EX                                              '%25m'
         18        DO_FCALL                                      0  $13     
         19        ADD                                              ~14     ~12, $13
         20        SEND_VAL                                                 ~14
         21        DO_ICALL                                                 
   10    22      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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