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<?php $array = [4, 3.1, 4, false, 3.2, 1, 2, 1]; $result = []; foreach ($array as $index => $value) { foreach ($array as $i => $v) { if ($value === $v && $index !== $i) { continue 2; // duplicate found, stop checking this value; do not retain } } $result[] = $value; } var_export($result);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 3, Position 2 = 20
Branch analysis from position: 3
2 jumps found. (Code = 78) Position 1 = 4, Position 2 = 20
Branch analysis from position: 4
2 jumps found. (Code = 77) Position 1 = 6, Position 2 = 16
Branch analysis from position: 6
2 jumps found. (Code = 78) Position 1 = 7, Position 2 = 16
Branch analysis from position: 7
2 jumps found. (Code = 46) Position 1 = 10, Position 2 = 12
Branch analysis from position: 10
2 jumps found. (Code = 43) Position 1 = 13, Position 2 = 15
Branch analysis from position: 13
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 15
1 jumps found. (Code = 42) Position 1 = 6
Branch analysis from position: 6
Branch analysis from position: 12
Branch analysis from position: 16
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 16
Branch analysis from position: 20
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 20
filename:       /in/UhKlZ
function name:  (null)
number of ops:  25
compiled vars:  !0 = $array, !1 = $result, !2 = $value, !3 = $index, !4 = $v, !5 = $i
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    5     1        ASSIGN                                                   !1, <array>
    6     2      > FE_RESET_R                                       $8      !0, ->20
          3    > > FE_FETCH_R                                       ~9      $8, !2, ->20
          4    >   ASSIGN                                                   !3, ~9
    7     5      > FE_RESET_R                                       $11     !0, ->16
          6    > > FE_FETCH_R                                       ~12     $11, !4, ->16
          7    >   ASSIGN                                                   !5, ~12
    8     8        IS_IDENTICAL                                     ~14     !2, !4
          9      > JMPZ_EX                                          ~14     ~14, ->12
         10    >   IS_NOT_IDENTICAL                                 ~15     !3, !5
         11        BOOL                                             ~14     ~15
         12    > > JMPZ                                                     ~14, ->15
    9    13    >   FE_FREE                                                  $11
         14      > JMP                                                      ->3
    7    15    > > JMP                                                      ->6
         16    >   FE_FREE                                                  $11
   12    17        ASSIGN_DIM                                               !1
         18        OP_DATA                                                  !2
    6    19      > JMP                                                      ->3
         20    >   FE_FREE                                                  $8
   14    21        INIT_FCALL                                               'var_export'
         22        SEND_VAR                                                 !1
         23        DO_ICALL                                                 
         24      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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