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<?php $firstOfJan = new DateTimeImmutable("2019-01-01"); $firstOfFeb = new DateTimeImmutable("2019-02-01"); $firstOfMar = new DateTimeImmutable("2019-03-01"); var_dump($firstOfJan->diff($firstOfFeb)->days > $firstOfFeb->diff($firstOfMar)->days); var_dump($firstOfJan->diff($firstOfFeb)->days); var_dump($firstOfFeb->diff($firstOfMar)->days);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/0OqcV
function name:  (null)
number of ops:  39
compiled vars:  !0 = $firstOfJan, !1 = $firstOfFeb, !2 = $firstOfMar
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   NEW                                              $3      'DateTimeImmutable'
          1        SEND_VAL_EX                                              '2019-01-01'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $3
    3     4        NEW                                              $6      'DateTimeImmutable'
          5        SEND_VAL_EX                                              '2019-02-01'
          6        DO_FCALL                                      0          
          7        ASSIGN                                                   !1, $6
    4     8        NEW                                              $9      'DateTimeImmutable'
          9        SEND_VAL_EX                                              '2019-03-01'
         10        DO_FCALL                                      0          
         11        ASSIGN                                                   !2, $9
    6    12        INIT_FCALL                                               'var_dump'
         13        INIT_METHOD_CALL                                         !0, 'diff'
         14        SEND_VAR_EX                                              !1
         15        DO_FCALL                                      0  $12     
         16        FETCH_OBJ_R                                      ~13     $12, 'days'
         17        INIT_METHOD_CALL                                         !1, 'diff'
         18        SEND_VAR_EX                                              !2
         19        DO_FCALL                                      0  $14     
         20        FETCH_OBJ_R                                      ~15     $14, 'days'
         21        IS_SMALLER                                       ~16     ~15, ~13
         22        SEND_VAL                                                 ~16
         23        DO_ICALL                                                 
    8    24        INIT_FCALL                                               'var_dump'
         25        INIT_METHOD_CALL                                         !0, 'diff'
         26        SEND_VAR_EX                                              !1
         27        DO_FCALL                                      0  $18     
         28        FETCH_OBJ_R                                      ~19     $18, 'days'
         29        SEND_VAL                                                 ~19
         30        DO_ICALL                                                 
    9    31        INIT_FCALL                                               'var_dump'
         32        INIT_METHOD_CALL                                         !1, 'diff'
         33        SEND_VAR_EX                                              !2
         34        DO_FCALL                                      0  $21     
         35        FETCH_OBJ_R                                      ~22     $21, 'days'
         36        SEND_VAL                                                 ~22
         37        DO_ICALL                                                 
         38      > RETURN                                                   1

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