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<?php $undefined_var = null; var_dump(!$undefined_var); if (!$undefined_var) { $undefined_var = 'world'; } var_dump($undefined_var);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 7, Position 2 = 8
Branch analysis from position: 7
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 8
filename:       /in/5DJtA
function name:  (null)
number of ops:  12
compiled vars:  !0 = $undefined_var
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, null
    3     1        INIT_FCALL                                               'var_dump'
          2        BOOL_NOT                                         ~2      !0
          3        SEND_VAL                                                 ~2
          4        DO_ICALL                                                 
    5     5        BOOL_NOT                                         ~4      !0
          6      > JMPZ                                                     ~4, ->8
    6     7    >   ASSIGN                                                   !0, 'world'
    8     8    >   INIT_FCALL                                               'var_dump'
          9        SEND_VAR                                                 !0
         10        DO_ICALL                                                 
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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