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<?php $someVar = new stdClass(); call_user_func(function() use ($someVar) { $someVar->value = true; }); var_dump($someVar);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/m9jJ3
function name:  (null)
number of ops:  11
compiled vars:  !0 = $someVar
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   NEW                                                  $1      'stdClass'
          1        DO_FCALL                                          0          
          2        ASSIGN                                                       !0, $1
    5     3        DECLARE_LAMBDA_FUNCTION                              ~4      [0]
          4        BIND_LEXICAL                                                 ~4, !0
    7     5        INIT_USER_CALL                                    0          'call_user_func', ~4
          6        DO_FCALL                                          0          
    9     7        INIT_FCALL                                                   'var_dump'
          8        SEND_VAR                                                     !0
          9        DO_ICALL                                                     
         10      > RETURN                                                       1


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/m9jJ3
function name:  {closure:/in/m9jJ3:5}
number of ops:  4
compiled vars:  !0 = $someVar
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    5     0  E >   BIND_STATIC                                                  !0
    6     1        ASSIGN_OBJ                                                   !0, 'value'
          2        OP_DATA                                                      <true>
    7     3      > RETURN                                                       null

End of Dynamic Function 0

Generated using Vulcan Logic Dumper, using php 8.5.0


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