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<?php $a = [1,2,3,4]; $b = [ 1=>[ 2=>[ 3=>[ 4=>[] ] ] ] ]; $tmp = []; foreach ($a as $val) { if ($tmp) { if (isset($tmp[$val])) { $tmp = &$tmp[$val]; } else { break; } } else { $tmp = &$b[$val]; } } $tmp = ['aaaa']; var_dump($tmp); var_dump($b);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 4, Position 2 = 16
Branch analysis from position: 4
2 jumps found. (Code = 78) Position 1 = 5, Position 2 = 16
Branch analysis from position: 5
2 jumps found. (Code = 43) Position 1 = 6, Position 2 = 13
Branch analysis from position: 6
2 jumps found. (Code = 43) Position 1 = 8, Position 2 = 11
Branch analysis from position: 8
1 jumps found. (Code = 42) Position 1 = 12
Branch analysis from position: 12
1 jumps found. (Code = 42) Position 1 = 15
Branch analysis from position: 15
1 jumps found. (Code = 42) Position 1 = 4
Branch analysis from position: 4
Branch analysis from position: 11
1 jumps found. (Code = 42) Position 1 = 16
Branch analysis from position: 16
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 13
1 jumps found. (Code = 42) Position 1 = 4
Branch analysis from position: 4
Branch analysis from position: 16
Branch analysis from position: 16
filename:       /in/TBLt5
function name:  (null)
number of ops:  25
compiled vars:  !0 = $a, !1 = $b, !2 = $tmp, !3 = $val
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        ASSIGN                                                   !1, <array>
   13     2        ASSIGN                                                   !2, <array>
   14     3      > FE_RESET_R                                       $7      !0, ->16
          4    > > FE_FETCH_R                                               $7, !3, ->16
   15     5    > > JMPZ                                                     !2, ->13
   16     6    >   ISSET_ISEMPTY_DIM_OBJ                         0          !2, !3
          7      > JMPZ                                                     ~8, ->11
   17     8    >   FETCH_DIM_W                                      $9      !2, !3
          9        ASSIGN_REF                                               !2, $9
         10      > JMP                                                      ->12
   19    11    > > JMP                                                      ->16
         12    > > JMP                                                      ->15
   22    13    >   FETCH_DIM_W                                      $11     !1, !3
         14        ASSIGN_REF                                               !2, $11
   14    15    > > JMP                                                      ->4
         16    >   FE_FREE                                                  $7
   26    17        ASSIGN                                                   !2, <array>
   28    18        INIT_FCALL                                               'var_dump'
         19        SEND_VAR                                                 !2
         20        DO_ICALL                                                 
   29    21        INIT_FCALL                                               'var_dump'
         22        SEND_VAR                                                 !1
         23        DO_ICALL                                                 
         24      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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