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<?php $d1 = new \Datetime('2017-5-1'); $d2 = new \Datetime('2017-6-1'); $d3 = new \Datetime('2017-7-1'); $diff1 = $d1->diff($d2); $diff2 = $d2->diff($d3); echo $diff1->m . " months " . $diff1->d . " days\n"; echo $diff2->m . " months " . $diff2->d . " days\n";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/rOASs
function name:  (null)
number of ops:  33
compiled vars:  !0 = $d1, !1 = $d2, !2 = $d3, !3 = $diff1, !4 = $diff2
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $5      'Datetime'
          1        SEND_VAL_EX                                              '2017-5-1'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $5
    4     4        NEW                                              $8      'Datetime'
          5        SEND_VAL_EX                                              '2017-6-1'
          6        DO_FCALL                                      0          
          7        ASSIGN                                                   !1, $8
    5     8        NEW                                              $11     'Datetime'
          9        SEND_VAL_EX                                              '2017-7-1'
         10        DO_FCALL                                      0          
         11        ASSIGN                                                   !2, $11
    7    12        INIT_METHOD_CALL                                         !0, 'diff'
         13        SEND_VAR_EX                                              !1
         14        DO_FCALL                                      0  $14     
         15        ASSIGN                                                   !3, $14
    8    16        INIT_METHOD_CALL                                         !1, 'diff'
         17        SEND_VAR_EX                                              !2
         18        DO_FCALL                                      0  $16     
         19        ASSIGN                                                   !4, $16
   10    20        FETCH_OBJ_R                                      ~18     !3, 'm'
         21        CONCAT                                           ~19     ~18, '+months+++'
         22        FETCH_OBJ_R                                      ~20     !3, 'd'
         23        CONCAT                                           ~21     ~19, ~20
         24        CONCAT                                           ~22     ~21, '+days%0A'
         25        ECHO                                                     ~22
   11    26        FETCH_OBJ_R                                      ~23     !4, 'm'
         27        CONCAT                                           ~24     ~23, '+months+++'
         28        FETCH_OBJ_R                                      ~25     !4, 'd'
         29        CONCAT                                           ~26     ~24, ~25
         30        CONCAT                                           ~27     ~26, '+days%0A'
         31        ECHO                                                     ~27
         32      > RETURN                                                   1

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