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<?php class Foo { } $r = new ReflectionClass('Foo'); var_dump($r->isInstance('string'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/J1jl9
function name:  (null)
number of ops:  11
compiled vars:  !0 = $r
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    8     0  E >   NEW                                                  $1      'ReflectionClass'
          1        SEND_VAL_EX                                                  'Foo'
          2        DO_FCALL                                          0          
          3        ASSIGN                                                       !0, $1
    9     4        INIT_FCALL                                                   'var_dump'
          5        INIT_METHOD_CALL                                             !0, 'isInstance'
          6        SEND_VAL_EX                                                  'string'
          7        DO_FCALL                                          0  $4      
          8        SEND_VAR                                                     $4
          9        DO_ICALL                                                     
         10      > RETURN                                                       1

Class Foo: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.5.0


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