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<?php $array = [ '7' => '15', '20' => '6', '11' => '9', '14' => '6', '4' => '15' ]; $result = []; foreach ($array as $key => $value) { $result[$value] = ($result[$value] ?? 0) + $key; } var_export($result);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 3, Position 2 = 12
Branch analysis from position: 3
2 jumps found. (Code = 78) Position 1 = 4, Position 2 = 12
Branch analysis from position: 4
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 12
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 12
filename:       /in/AEBYV
function name:  (null)
number of ops:  17
compiled vars:  !0 = $array, !1 = $result, !2 = $value, !3 = $key
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
   11     1        ASSIGN                                                   !1, <array>
   12     2      > FE_RESET_R                                       $6      !0, ->12
          3    > > FE_FETCH_R                                       ~7      $6, !2, ->12
          4    >   ASSIGN                                                   !3, ~7
   13     5        FETCH_DIM_IS                                     ~10     !1, !2
          6        COALESCE                                         ~11     ~10
          7        QM_ASSIGN                                        ~11     0
          8        ADD                                              ~12     ~11, !3
          9        ASSIGN_DIM                                               !1, !2
         10        OP_DATA                                                  ~12
   12    11      > JMP                                                      ->3
         12    >   FE_FREE                                                  $6
   15    13        INIT_FCALL                                               'var_export'
         14        SEND_VAR                                                 !1
         15        DO_ICALL                                                 
         16      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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