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<?php function foo(&$bar) { var_dump($bar); } class Bar { } foo(new Bar());
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/RVcA3
function name:  (null)
number of ops:  6
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   11     0  E >   INIT_FCALL                                                   'foo'
          1        NEW                                                  $0      'Bar'
          2        DO_FCALL                                          0          
          3        SEND_VAR_NO_REF                                   0          $0
          4        DO_FCALL                                          0          
   12     5      > RETURN                                                       1

Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/RVcA3
function name:  foo
number of ops:  5
compiled vars:  !0 = $bar
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   RECV                                                 !0      
    4     1        INIT_FCALL                                                   'var_dump'
          2        SEND_VAR                                                     !0
          3        DO_ICALL                                                     
    5     4      > RETURN                                                       null

End of function foo

Class Bar: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.5.0


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