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<?php test($undefined); function test($parameter = 'hello') { echo $parameter; }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/7HIh0
function name:  (null)
number of ops:  4
compiled vars:  !0 = $undefined
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL_BY_NAME                                       'test'
          1        SEND_VAR_EX                                              !0
          2        DO_FCALL                                      0          
    7     3      > RETURN                                                   1

Function test:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/7HIh0
function name:  test
number of ops:  3
compiled vars:  !0 = $parameter
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   RECV_INIT                                        !0      'hello'
    6     1        ECHO                                                     !0
    7     2      > RETURN                                                   null

End of function test

Generated using Vulcan Logic Dumper, using php 8.0.0


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