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<?php $array=[[8,9,7],[7,8,9,33,21],[11,12,33,21,9,31]]; foreach($array as $sub){ foreach($sub as $v){ if(!isset($result[$v])){ $result[$v]=$v; } } } var_export(array_values($result));
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 2, Position 2 = 13
Branch analysis from position: 2
2 jumps found. (Code = 78) Position 1 = 3, Position 2 = 13
Branch analysis from position: 3
2 jumps found. (Code = 77) Position 1 = 4, Position 2 = 11
Branch analysis from position: 4
2 jumps found. (Code = 78) Position 1 = 5, Position 2 = 11
Branch analysis from position: 5
2 jumps found. (Code = 43) Position 1 = 8, Position 2 = 10
Branch analysis from position: 8
1 jumps found. (Code = 42) Position 1 = 4
Branch analysis from position: 4
Branch analysis from position: 10
Branch analysis from position: 11
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 11
Branch analysis from position: 13
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 13
filename:       /in/G7hhs
function name:  (null)
number of ops:  21
compiled vars:  !0 = $array, !1 = $sub, !2 = $v, !3 = $result
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    3     1      > FE_RESET_R                                       $5      !0, ->13
          2    > > FE_FETCH_R                                               $5, !1, ->13
    4     3    > > FE_RESET_R                                       $6      !1, ->11
          4    > > FE_FETCH_R                                               $6, !2, ->11
    5     5    >   ISSET_ISEMPTY_DIM_OBJ                         0  ~7      !3, !2
          6        BOOL_NOT                                         ~8      ~7
          7      > JMPZ                                                     ~8, ->10
    6     8    >   ASSIGN_DIM                                               !3, !2
          9        OP_DATA                                                  !2
    4    10    > > JMP                                                      ->4
         11    >   FE_FREE                                                  $6
    3    12      > JMP                                                      ->2
         13    >   FE_FREE                                                  $5
   10    14        INIT_FCALL                                               'var_export'
         15        INIT_FCALL                                               'array_values'
         16        SEND_VAR                                                 !3
         17        DO_ICALL                                         $10     
         18        SEND_VAR                                                 $10
         19        DO_ICALL                                                 
         20      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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