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<?php $test = ['a' => 1, 'b' => null]; echo "array_key_exists:\n"; echo array_key_exists('a', $test) ? "a: found\n" : "a: not found\n"; echo array_key_exists('b', $test) ? "b: found\n" : "b: not found\n"; echo "\n\nisset:\n"; echo isset($test['a']) ? "a: found\n" : "a: not found\n"; echo isset($test['b']) ? "b: found\n" : "b: not found\n"; echo "\n\nempty:\n"; echo empty($test['a']) ? "a: found\n" : "a: not found\n"; echo empty($test['b']) ? "b: found\n" : "b: not found\n";
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 4, Position 2 = 6
Branch analysis from position: 4
1 jumps found. (Code = 42) Position 1 = 7
Branch analysis from position: 7
2 jumps found. (Code = 43) Position 1 = 10, Position 2 = 12
Branch analysis from position: 10
1 jumps found. (Code = 42) Position 1 = 13
Branch analysis from position: 13
2 jumps found. (Code = 43) Position 1 = 17, Position 2 = 19
Branch analysis from position: 17
1 jumps found. (Code = 42) Position 1 = 20
Branch analysis from position: 20
2 jumps found. (Code = 43) Position 1 = 23, Position 2 = 25
Branch analysis from position: 23
1 jumps found. (Code = 42) Position 1 = 26
Branch analysis from position: 26
2 jumps found. (Code = 43) Position 1 = 30, Position 2 = 32
Branch analysis from position: 30
1 jumps found. (Code = 42) Position 1 = 33
Branch analysis from position: 33
2 jumps found. (Code = 43) Position 1 = 36, Position 2 = 38
Branch analysis from position: 36
1 jumps found. (Code = 42) Position 1 = 39
Branch analysis from position: 39
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 38
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 32
2 jumps found. (Code = 43) Position 1 = 36, Position 2 = 38
Branch analysis from position: 36
Branch analysis from position: 38
Branch analysis from position: 25
2 jumps found. (Code = 43) Position 1 = 30, Position 2 = 32
Branch analysis from position: 30
Branch analysis from position: 32
Branch analysis from position: 19
2 jumps found. (Code = 43) Position 1 = 23, Position 2 = 25
Branch analysis from position: 23
Branch analysis from position: 25
Branch analysis from position: 12
2 jumps found. (Code = 43) Position 1 = 17, Position 2 = 19
Branch analysis from position: 17
Branch analysis from position: 19
Branch analysis from position: 6
2 jumps found. (Code = 43) Position 1 = 10, Position 2 = 12
Branch analysis from position: 10
Branch analysis from position: 12
filename:       /in/dh6oc
function name:  (null)
number of ops:  41
compiled vars:  !0 = $test
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    5     1        ECHO                                                     'array_key_exists%3A%0A'
    6     2        ARRAY_KEY_EXISTS                                         'a', !0
          3      > JMPZ                                                     ~2, ->6
          4    >   QM_ASSIGN                                        ~3      'a%3A+found%0A'
          5      > JMP                                                      ->7
          6    >   QM_ASSIGN                                        ~3      'a%3A+not+found%0A'
          7    >   ECHO                                                     ~3
    7     8        ARRAY_KEY_EXISTS                                         'b', !0
          9      > JMPZ                                                     ~4, ->12
         10    >   QM_ASSIGN                                        ~5      'b%3A+found%0A'
         11      > JMP                                                      ->13
         12    >   QM_ASSIGN                                        ~5      'b%3A+not+found%0A'
         13    >   ECHO                                                     ~5
    9    14        ECHO                                                     '%0A%0Aisset%3A%0A'
   10    15        ISSET_ISEMPTY_DIM_OBJ                         0          !0, 'a'
         16      > JMPZ                                                     ~6, ->19
         17    >   QM_ASSIGN                                        ~7      'a%3A+found%0A'
         18      > JMP                                                      ->20
         19    >   QM_ASSIGN                                        ~7      'a%3A+not+found%0A'
         20    >   ECHO                                                     ~7
   11    21        ISSET_ISEMPTY_DIM_OBJ                         0          !0, 'b'
         22      > JMPZ                                                     ~8, ->25
         23    >   QM_ASSIGN                                        ~9      'b%3A+found%0A'
         24      > JMP                                                      ->26
         25    >   QM_ASSIGN                                        ~9      'b%3A+not+found%0A'
         26    >   ECHO                                                     ~9
   13    27        ECHO                                                     '%0A%0Aempty%3A%0A'
   14    28        ISSET_ISEMPTY_DIM_OBJ                         1          !0, 'a'
         29      > JMPZ                                                     ~10, ->32
         30    >   QM_ASSIGN                                        ~11     'a%3A+found%0A'
         31      > JMP                                                      ->33
         32    >   QM_ASSIGN                                        ~11     'a%3A+not+found%0A'
         33    >   ECHO                                                     ~11
   15    34        ISSET_ISEMPTY_DIM_OBJ                         1          !0, 'b'
         35      > JMPZ                                                     ~12, ->38
         36    >   QM_ASSIGN                                        ~13     'b%3A+found%0A'
         37      > JMP                                                      ->39
         38    >   QM_ASSIGN                                        ~13     'b%3A+not+found%0A'
         39    >   ECHO                                                     ~13
         40      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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