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<?php $a = new StdClass; $b = null; var_dump(!$a); var_dump(!$b instanceof StdClass); var_dump(!$a instanceof StdClass); var_dump(!($b instanceof StdClass)); var_dump(!($a instanceof StdClass)); var_dump($b instanceof StdClass); var_dump($a instanceof StdClass);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/kdpa7
function name:  (null)
number of ops:  37
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $2      'StdClass'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $2
    4     3        ASSIGN                                                   !1, null
    6     4        INIT_FCALL                                               'var_dump'
          5        BOOL_NOT                                         ~6      !0
          6        SEND_VAL                                                 ~6
          7        DO_ICALL                                                 
    8     8        INIT_FCALL                                               'var_dump'
          9        INSTANCEOF                                       ~8      !1, 'StdClass'
         10        BOOL_NOT                                         ~9      ~8
         11        SEND_VAL                                                 ~9
         12        DO_ICALL                                                 
    9    13        INIT_FCALL                                               'var_dump'
         14        INSTANCEOF                                       ~11     !0, 'StdClass'
         15        BOOL_NOT                                         ~12     ~11
         16        SEND_VAL                                                 ~12
         17        DO_ICALL                                                 
   10    18        INIT_FCALL                                               'var_dump'
         19        INSTANCEOF                                       ~14     !1, 'StdClass'
         20        BOOL_NOT                                         ~15     ~14
         21        SEND_VAL                                                 ~15
         22        DO_ICALL                                                 
   11    23        INIT_FCALL                                               'var_dump'
         24        INSTANCEOF                                       ~17     !0, 'StdClass'
         25        BOOL_NOT                                         ~18     ~17
         26        SEND_VAL                                                 ~18
         27        DO_ICALL                                                 
   12    28        INIT_FCALL                                               'var_dump'
         29        INSTANCEOF                                       ~20     !1, 'StdClass'
         30        SEND_VAL                                                 ~20
         31        DO_ICALL                                                 
   13    32        INIT_FCALL                                               'var_dump'
         33        INSTANCEOF                                       ~22     !0, 'StdClass'
         34        SEND_VAL                                                 ~22
         35        DO_ICALL                                                 
         36      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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