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<?php class foo { } $o = new foo(); var_dump( is_a( $o, 'foo' ) ); var_dump( $o instanceof foo );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/3MKCk
function name:  (null)
number of ops:  15
compiled vars:  !0 = $o
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   NEW                                              $1      'foo'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $1
    8     3        INIT_FCALL                                               'var_dump'
          4        INIT_FCALL                                               'is_a'
          5        SEND_VAR                                                 !0
          6        SEND_VAL                                                 'foo'
          7        DO_ICALL                                         $4      
          8        SEND_VAR                                                 $4
          9        DO_ICALL                                                 
    9    10        INIT_FCALL                                               'var_dump'
         11        INSTANCEOF                                       ~6      !0, 'foo'
         12        SEND_VAL                                                 ~6
         13        DO_ICALL                                                 
         14      > RETURN                                                   1

Class foo: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.0.0


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