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<?php $arr = array('a' => 1); $var = 11; $var = @$arr['b']; echo (isset($var) ? 'true' : 'false');
Finding entry points
Branch analysis from position: 0
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
filename:       /in/DB87A
function name:  (null)
number of ops:  13
compiled vars:  !0 = $arr, !1 = $var
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        ASSIGN                                                   !1, 11
    5     2        BEGIN_SILENCE                                    ~4      
          3        FETCH_DIM_R                                      ~5      !0, 'b'
          4        END_SILENCE                                              ~4
          5        ASSIGN                                                   !1, ~5
    6     6        ISSET_ISEMPTY_CV                                         !1
          7      > JMPZ                                                     ~7, ->10
          8    >   QM_ASSIGN                                        ~8      'true'
          9      > JMP                                                      ->11
         10    >   QM_ASSIGN                                        ~8      'false'
         11    >   ECHO                                                     ~8
         12      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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