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<?php $array = ['foo'=>'bar']; //PHP5 style $message = isset($array['foo']) ? $array['foo'] : 'not set'; echo $message.PHP_EOL; //PHP7 style $message = $array['foo'] ?? 'not set'; echo $message.PHP_EOL;
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 6
Branch analysis from position: 3
1 jumps found. (Code = 42) Position 1 = 7
Branch analysis from position: 7
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 6
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/oh118
function name:  (null)
number of ops:  17
compiled vars:  !0 = $array, !1 = $message
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    8     1        ISSET_ISEMPTY_DIM_OBJ                         0          !0, 'foo'
          2      > JMPZ                                                     ~3, ->6
          3    >   FETCH_DIM_R                                      ~4      !0, 'foo'
          4        QM_ASSIGN                                        ~5      ~4
          5      > JMP                                                      ->7
          6    >   QM_ASSIGN                                        ~5      'not+set'
          7    >   ASSIGN                                                   !1, ~5
          8        CONCAT                                           ~7      !1, '%0A'
          9        ECHO                                                     ~7
   13    10        FETCH_DIM_IS                                     ~8      !0, 'foo'
         11        COALESCE                                         ~9      ~8
         12        QM_ASSIGN                                        ~9      'not+set'
         13        ASSIGN                                                   !1, ~9
         14        CONCAT                                           ~11     !1, '%0A'
         15        ECHO                                                     ~11
   14    16      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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