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<?php $bar = new stdClass(); function testfunc($foo = null) { $foo->baz = 1; } call_user_func_array('testfunc', array($bar)); print_r($bar);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/gQAlJ
function name:  (null)
number of ops:  12
compiled vars:  !0 = $bar
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        INIT_FCALL                                               'testfunc'
          4        INIT_ARRAY                                       ~4      !0
          5        SEND_ARRAY                                               ~4
          6        CHECK_UNDEF_ARGS                                         
          7        DO_FCALL                                      0          
    6     8        INIT_FCALL                                               'print_r'
          9        SEND_VAR                                                 !0
         10        DO_ICALL                                                 
         11      > RETURN                                                   1

Function testfunc:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/gQAlJ
function name:  testfunc
number of ops:  4
compiled vars:  !0 = $foo
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   RECV_INIT                                        !0      null
          1        ASSIGN_OBJ                                               !0, 'baz'
          2        OP_DATA                                                  1
          3      > RETURN                                                   null

End of function testfunc

Generated using Vulcan Logic Dumper, using php 8.0.0


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