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<?php $foo = $bar['baz']['dawg'][0]->wham ?? 'foo'; echo isset($bar['baz']['dawg'][0]->wham) ? 'yeah' : 'nope' . PHP_EOL; echo $foo;
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 12, Position 2 = 14
Branch analysis from position: 12
1 jumps found. (Code = 42) Position 1 = 15
Branch analysis from position: 15
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 14
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/4jopB
function name:  (null)
number of ops:  18
compiled vars:  !0 = $foo, !1 = $bar
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   FETCH_DIM_IS                                     ~2      !1, 'baz'
          1        FETCH_DIM_IS                                     ~3      ~2, 'dawg'
          2        FETCH_DIM_IS                                     ~4      ~3, 0
          3        FETCH_OBJ_IS                                     ~5      ~4, 'wham'
          4        COALESCE                                         ~6      ~5
          5        QM_ASSIGN                                        ~6      'foo'
          6        ASSIGN                                                   !0, ~6
    5     7        FETCH_DIM_IS                                     ~8      !1, 'baz'
          8        FETCH_DIM_IS                                     ~9      ~8, 'dawg'
          9        FETCH_DIM_IS                                     ~10     ~9, 0
         10        ISSET_ISEMPTY_PROP_OBJ                                   ~10, 'wham'
         11      > JMPZ                                                     ~11, ->14
         12    >   QM_ASSIGN                                        ~12     'yeah'
         13      > JMP                                                      ->15
         14    >   QM_ASSIGN                                        ~12     'nope%0A'
         15    >   ECHO                                                     ~12
    7    16        ECHO                                                     !0
         17      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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