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<?php $a = new StdClass; $b = null; var_dump(!$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/b0vYE
function name:  (null)
number of ops:  33
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        INSTANCEOF                                       ~6      !1, 'StdClass'
          6        BOOL_NOT                                         ~7      ~6
          7        SEND_VAL                                                 ~7
          8        DO_ICALL                                                 
    7     9        INIT_FCALL                                               'var_dump'
         10        INSTANCEOF                                       ~9      !0, 'StdClass'
         11        BOOL_NOT                                         ~10     ~9
         12        SEND_VAL                                                 ~10
         13        DO_ICALL                                                 
    8    14        INIT_FCALL                                               'var_dump'
         15        INSTANCEOF                                       ~12     !1, 'StdClass'
         16        BOOL_NOT                                         ~13     ~12
         17        SEND_VAL                                                 ~13
         18        DO_ICALL                                                 
    9    19        INIT_FCALL                                               'var_dump'
         20        INSTANCEOF                                       ~15     !0, 'StdClass'
         21        BOOL_NOT                                         ~16     ~15
         22        SEND_VAL                                                 ~16
         23        DO_ICALL                                                 
   10    24        INIT_FCALL                                               'var_dump'
         25        INSTANCEOF                                       ~18     !1, 'StdClass'
         26        SEND_VAL                                                 ~18
         27        DO_ICALL                                                 
   11    28        INIT_FCALL                                               'var_dump'
         29        INSTANCEOF                                       ~20     !0, 'StdClass'
         30        SEND_VAL                                                 ~20
         31        DO_ICALL                                                 
         32      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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