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<?php testy(null); function testy(\DateTime $date = null) {}
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/bNP6V
function name:  (null)
number of ops:  4
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL_BY_NAME                                       'testy'
          1        SEND_VAL_EX                                              null
          2        DO_FCALL                                      0          
    5     3      > RETURN                                                   1

Function testy:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/bNP6V
function name:  testy
number of ops:  2
compiled vars:  !0 = $date
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
          0  E >   RECV_INIT                                        !0      null
          1      > RETURN                                                   null

End of function testy

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