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<?php $foo = null; print isset($foo)?'true': 'false'; $foo = 0; print isset($foo)?'true':'false';
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 5
Branch analysis from position: 3
1 jumps found. (Code = 42) Position 1 = 6
Branch analysis from position: 6
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
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 12
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 5
2 jumps found. (Code = 43) Position 1 = 10, Position 2 = 12
Branch analysis from position: 10
Branch analysis from position: 12
filename:       /in/htB5S
function name:  (null)
number of ops:  15
compiled vars:  !0 = $foo
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, null
    3     1        ISSET_ISEMPTY_CV                                         !0
          2      > JMPZ                                                     ~2, ->5
          3    >   QM_ASSIGN                                        ~3      'true'
          4      > JMP                                                      ->6
          5    >   QM_ASSIGN                                        ~3      'false'
          6    >   ECHO                                                     ~3
    5     7        ASSIGN                                                   !0, 0
    6     8        ISSET_ISEMPTY_CV                                         !0
          9      > JMPZ                                                     ~5, ->12
         10    >   QM_ASSIGN                                        ~6      'true'
         11      > JMP                                                      ->13
         12    >   QM_ASSIGN                                        ~6      'false'
         13    >   ECHO                                                     ~6
         14      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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