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<?php $b = [1, 2, 3]; foreach($b ? $b : [] as &$v){ $v = $v*2; unset($v); } var_dump($b);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 2, Position 2 = 4
Branch analysis from position: 2
1 jumps found. (Code = 42) Position 1 = 5
Branch analysis from position: 5
2 jumps found. (Code = 125) Position 1 = 6, Position 2 = 11
Branch analysis from position: 6
2 jumps found. (Code = 126) Position 1 = 7, Position 2 = 11
Branch analysis from position: 7
1 jumps found. (Code = 42) Position 1 = 6
Branch analysis from position: 6
Branch analysis from position: 11
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 11
Branch analysis from position: 4
2 jumps found. (Code = 125) Position 1 = 6, Position 2 = 11
Branch analysis from position: 6
Branch analysis from position: 11
filename:       /in/GfCc4
function name:  (null)
number of ops:  16
compiled vars:  !0 = $b, !1 = $v
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    5     1      > JMPZ                                                     !0, ->4
          2    >   QM_ASSIGN                                        ~3      !0
          3      > JMP                                                      ->5
          4    >   QM_ASSIGN                                        ~3      <array>
          5    > > FE_RESET_RW                                      $4      ~3, ->11
          6    > > FE_FETCH_RW                                              $4, !1, ->11
    6     7    >   MUL                                              ~5      !1, 2
          8        ASSIGN                                                   !1, ~5
    7     9        UNSET_CV                                                 !1
    5    10      > JMP                                                      ->6
         11    >   FE_FREE                                                  $4
   10    12        INIT_FCALL                                               'var_dump'
         13        SEND_VAR                                                 !0
         14        DO_ICALL                                                 
         15      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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