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<?php $arr = array('no_error' => 'fafasfasfasf'); $brr = array(); if ($brr AND !$brr[_error]) print 'no error'; else print 'is error';
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 46) Position 1 = 3, Position 2 = 7
Branch analysis from position: 3
2 jumps found. (Code = 43) Position 1 = 8, Position 2 = 10
Branch analysis from position: 8
1 jumps found. (Code = 42) Position 1 = 11
Branch analysis from position: 11
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 10
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 7
filename:       /in/blTr0
function name:  (null)
number of ops:  12
compiled vars:  !0 = $arr, !1 = $brr
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        ASSIGN                                                   !1, <array>
    6     2      > JMPZ_EX                                          ~4      !1, ->7
          3    >   FETCH_CONSTANT                                   ~5      '_error'
          4        FETCH_DIM_R                                      ~6      !1, ~5
          5        BOOL_NOT                                         ~7      ~6
          6        BOOL                                             ~4      ~7
          7    > > JMPZ                                                     ~4, ->10
          8    >   ECHO                                                     'no+error'
          9      > JMP                                                      ->11
    7    10    >   ECHO                                                     'is+error'
         11    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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