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<?php $c = array(); // You store some data using some string keys foreach (array('ab', 'cd', '10', 'gh', '24') as $key) { $c[$key] = 1; } var_dump($c); // You pass the array $c to some place else and there you do something like foreach ($c as $k => $v) { if ($k === '10') { echo "found"; exit; } } echo "Not found";
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 2, Position 2 = 6
Branch analysis from position: 2
2 jumps found. (Code = 78) Position 1 = 3, Position 2 = 6
Branch analysis from position: 3
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 6
2 jumps found. (Code = 77) Position 1 = 11, Position 2 = 18
Branch analysis from position: 11
2 jumps found. (Code = 78) Position 1 = 12, Position 2 = 18
Branch analysis from position: 12
2 jumps found. (Code = 43) Position 1 = 15, Position 2 = 17
Branch analysis from position: 15
1 jumps found. (Code = 79) Position 1 = -2
Branch analysis from position: 17
1 jumps found. (Code = 42) Position 1 = 11
Branch analysis from position: 11
Branch analysis from position: 18
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 18
Branch analysis from position: 6
filename:       /in/8TuqK
function name:  (null)
number of ops:  21
compiled vars:  !0 = $c, !1 = $key, !2 = $v, !3 = $k
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    5     1      > FE_RESET_R                                       $5      <array>, ->6
          2    > > FE_FETCH_R                                               $5, !1, ->6
    6     3    >   ASSIGN_DIM                                               !0, !1
          4        OP_DATA                                                  1
    5     5      > JMP                                                      ->2
          6    >   FE_FREE                                                  $5
    9     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !0
          9        DO_ICALL                                                 
   12    10      > FE_RESET_R                                       $8      !0, ->18
         11    > > FE_FETCH_R                                       ~9      $8, !2, ->18
         12    >   ASSIGN                                                   !3, ~9
   13    13        IS_IDENTICAL                                             !3, '10'
         14      > JMPZ                                                     ~11, ->17
   14    15    >   ECHO                                                     'found'
   15    16      > EXIT                                                     
   12    17    > > JMP                                                      ->11
         18    >   FE_FREE                                                  $8
   18    19        ECHO                                                     'Not+found'
         20      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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