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<?php function myfunction(&$first = null, $second = null) { var_dump($first, $second); } myfunction($null, "something");
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jNgK7
function name:  (null)
number of ops:  5
compiled vars:  !0 = $null
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    5     0  E >   INIT_FCALL                                                   'myfunction'
          1        SEND_REF                                                     !0
          2        SEND_VAL                                                     'something'
          3        DO_FCALL                                          0          
          4      > RETURN                                                       1

Function myfunction:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jNgK7
function name:  myfunction
number of ops:  7
compiled vars:  !0 = $first, !1 = $second
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    2     0  E >   RECV_INIT                                            !0      null
          1        RECV_INIT                                            !1      null
    3     2        INIT_FCALL                                                   'var_dump'
          3        SEND_VAR                                                     !0
          4        SEND_VAR                                                     !1
          5        DO_ICALL                                                     
    4     6      > RETURN                                                       null

End of function myfunction

Generated using Vulcan Logic Dumper, using php 8.5.0


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