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<?php $test = NULL; echo empty(unserialize($test)) ? 'Yes' : 'No';
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 6, Position 2 = 8
Branch analysis from position: 6
1 jumps found. (Code = 42) Position 1 = 9
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/TVKDY
function name:  (null)
number of ops:  11
compiled vars:  !0 = $test
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, null
    5     1        INIT_FCALL                                               'unserialize'
          2        SEND_VAR                                                 !0
          3        DO_ICALL                                         $2      
          4        BOOL_NOT                                         ~3      $2
          5      > JMPZ                                                     ~3, ->8
          6    >   QM_ASSIGN                                        ~4      'Yes'
          7      > JMP                                                      ->9
          8    >   QM_ASSIGN                                        ~4      'No'
          9    >   ECHO                                                     ~4
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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