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<?php class B { } $b = new B(); var_dump(@is_a($b, 'X'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/PQduD
function name:  (null)
number of ops:  13
compiled vars:  !0 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   NEW                                              $1      'B'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $1
    5     3        INIT_FCALL                                               'var_dump'
          4        BEGIN_SILENCE                                    ~4      
          5        INIT_FCALL                                               'is_a'
          6        SEND_VAR                                                 !0
          7        SEND_VAL                                                 'X'
          8        DO_ICALL                                         $5      
          9        END_SILENCE                                              ~4
         10        SEND_VAR                                                 $5
         11        DO_ICALL                                                 
         12      > RETURN                                                   1

Class B: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.0.0


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