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<?php $main = [ 'lorem' => 'lorem', 'ipsum' => 'duis', 'sit' => 'adipiscing', 'duis' => 'sit', 'amet' => 'elit', 'consectetur' => 'lorem', 'adipiscing' => 'consectetur', 'eiusmod' => 'ipsum', 'labore' => 'eiusmod', 'dolore' => 'labore', 'magna' => 'dolore', 'aliqua' => 'amet', 'incididunt' => 'magna', 'tempor' => 'incididunt', 'sed' => 'tempor', 'elit' => 'sed', ]; foreach ($main as $k => $v) { if ($k === $v) { $result[$k] = $v; } else { $map[$v] = $k; } } $k = key($result); while (isset($map[$k])) { $result[$map[$k]] = $k; $k = $map[$k]; } var_export($result);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 2, Position 2 = 12
Branch analysis from position: 2
2 jumps found. (Code = 78) Position 1 = 3, Position 2 = 12
Branch analysis from position: 3
2 jumps found. (Code = 43) Position 1 = 6, Position 2 = 9
Branch analysis from position: 6
1 jumps found. (Code = 42) Position 1 = 11
Branch analysis from position: 11
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 9
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 12
1 jumps found. (Code = 42) Position 1 = 23
Branch analysis from position: 23
2 jumps found. (Code = 44) Position 1 = 25, Position 2 = 18
Branch analysis from position: 25
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 18
2 jumps found. (Code = 44) Position 1 = 25, Position 2 = 18
Branch analysis from position: 25
Branch analysis from position: 18
Branch analysis from position: 12
filename:       /in/s9JsB
function name:  (null)
number of ops:  29
compiled vars:  !0 = $main, !1 = $v, !2 = $k, !3 = $result, !4 = $map
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
   22     1      > FE_RESET_R                                       $6      !0, ->12
          2    > > FE_FETCH_R                                       ~7      $6, !1, ->12
          3    >   ASSIGN                                                   !2, ~7
   23     4        IS_IDENTICAL                                             !2, !1
          5      > JMPZ                                                     ~9, ->9
   24     6    >   ASSIGN_DIM                                               !3, !2
          7        OP_DATA                                                  !1
   23     8      > JMP                                                      ->11
   26     9    >   ASSIGN_DIM                                               !4, !1
         10        OP_DATA                                                  !2
   22    11    > > JMP                                                      ->2
         12    >   FE_FREE                                                  $6
   30    13        INIT_FCALL                                               'key'
         14        SEND_VAR                                                 !3
         15        DO_ICALL                                         $12     
         16        ASSIGN                                                   !2, $12
   31    17      > JMP                                                      ->23
   32    18    >   FETCH_DIM_R                                      ~14     !4, !2
         19        ASSIGN_DIM                                               !3, ~14
         20        OP_DATA                                                  !2
   33    21        FETCH_DIM_R                                      ~16     !4, !2
         22        ASSIGN                                                   !2, ~16
   31    23    >   ISSET_ISEMPTY_DIM_OBJ                         0          !4, !2
         24      > JMPNZ                                                    ~18, ->18
   36    25    >   INIT_FCALL                                               'var_export'
         26        SEND_VAR                                                 !3
         27        DO_ICALL                                                 
         28      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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